Home / 702,260,442.69-969,119,327.82-420,002,839.86

Finding the Fourth Proportional to 702,260,442.69, 969,119,327.82 and 420,002,839.86

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Solution

The fourth proportional to 702,260,442.69, 969,119,327.82 and 420,002,839.86 is: 579,603,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,260,442.69 : 969,119,327.82 = 420,002,839.86 : x
  2. Step 2: Convert to fraction form
    702,260,442.69/969,119,327.82 = 420,002,839.86/x
  3. Step 3: Cross multiply
    702,260,442.69x = 969,119,327.82 × 420,002,839.86
  4. Step 4: Simplify right side
    702,260,442.69x = 407,032,869,847,614,336
  5. Step 5: Solve for x
    x = 407,032,869,847,614,336/702,260,442.69
  6. Step 6: Final answer
    x = 579,603,869.31

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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.