Home / 721,759,562.28-996,029,157.06-391,734,743.40

Finding the Fourth Proportional to 721,759,562.28, 996,029,157.06 and 391,734,743.40

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Solution

The fourth proportional to 721,759,562.28, 996,029,157.06 and 391,734,743.40 is: 540,594,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,759,562.28 : 996,029,157.06 = 391,734,743.40 : x
  2. Step 2: Convert to fraction form
    721,759,562.28/996,029,157.06 = 391,734,743.40/x
  3. Step 3: Cross multiply
    721,759,562.28x = 996,029,157.06 × 391,734,743.40
  4. Step 4: Simplify right side
    721,759,562.28x = 390,179,226,259,817,344
  5. Step 5: Solve for x
    x = 390,179,226,259,817,344/721,759,562.28
  6. Step 6: Final answer
    x = 540,594,467.54

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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.