Home / 702,260,445.70-969,119,331.96-420,002,842.86

Finding the Fourth Proportional to 702,260,445.70, 969,119,331.96 and 420,002,842.86

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Solution

The fourth proportional to 702,260,445.70, 969,119,331.96 and 420,002,842.86 is: 579,603,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,260,445.70 : 969,119,331.96 = 420,002,842.86 : x
  2. Step 2: Convert to fraction form
    702,260,445.70/969,119,331.96 = 420,002,842.86/x
  3. Step 3: Cross multiply
    702,260,445.70x = 969,119,331.96 × 420,002,842.86
  4. Step 4: Simplify right side
    702,260,445.70x = 407,032,874,493,784,064
  5. Step 5: Solve for x
    x = 407,032,874,493,784,064/702,260,445.70
  6. Step 6: Final answer
    x = 579,603,873.44

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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.