Home / 989,556,154.45-1,365,825,312.80-566,415,135.45

Finding the Fourth Proportional to 989,556,154.45, 1,365,825,312.80 and 566,415,135.45

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Solution

The fourth proportional to 989,556,154.45, 1,365,825,312.80 and 566,415,135.45 is: 781,789,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,556,154.45 : 1,365,825,312.80 = 566,415,135.45 : x
  2. Step 2: Convert to fraction form
    989,556,154.45/1,365,825,312.80 = 566,415,135.45/x
  3. Step 3: Cross multiply
    989,556,154.45x = 1,365,825,312.80 × 566,415,135.45
  4. Step 4: Simplify right side
    989,556,154.45x = 773,624,129,549,970,944
  5. Step 5: Solve for x
    x = 773,624,129,549,970,944/989,556,154.45
  6. Step 6: Final answer
    x = 781,789,013.26

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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.