Home / 1,354,636,602.76-1,868,979,560.52-789,721,614.76

Finding the Fourth Proportional to 1,354,636,602.76, 1,868,979,560.52 and 789,721,614.76

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Solution

The fourth proportional to 1,354,636,602.76, 1,868,979,560.52 and 789,721,614.76 is: 1,089,571,589.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,636,602.76 : 1,868,979,560.52 = 789,721,614.76 : x
  2. Step 2: Convert to fraction form
    1,354,636,602.76/1,868,979,560.52 = 789,721,614.76/x
  3. Step 3: Cross multiply
    1,354,636,602.76x = 1,868,979,560.52 × 789,721,614.76
  4. Step 4: Simplify right side
    1,354,636,602.76x = 1,475,973,556,487,289,600
  5. Step 5: Solve for x
    x = 1,475,973,556,487,289,600/1,354,636,602.76
  6. Step 6: Final answer
    x = 1,089,571,589.52

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Half scale
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Double scale
Find fourth proportional to 1,354,636,603.76, 1,868,979,561.90 and 789,721,615.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.