Home / 1,357,149,239.26-1,873,017,602.70-821,595,986.30

Finding the Fourth Proportional to 1,357,149,239.26, 1,873,017,602.70 and 821,595,986.30

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Solution

The fourth proportional to 1,357,149,239.26, 1,873,017,602.70 and 821,595,986.30 is: 1,133,894,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,149,239.26 : 1,873,017,602.70 = 821,595,986.30 : x
  2. Step 2: Convert to fraction form
    1,357,149,239.26/1,873,017,602.70 = 821,595,986.30/x
  3. Step 3: Cross multiply
    1,357,149,239.26x = 1,873,017,602.70 × 821,595,986.30
  4. Step 4: Simplify right side
    1,357,149,239.26x = 1,538,863,744,647,567,872
  5. Step 5: Solve for x
    x = 1,538,863,744,647,567,872/1,357,149,239.26
  6. Step 6: Final answer
    x = 1,133,894,269.05

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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.