Home / 402,551,463.20-603,614,618.40-172,260,363.20

Finding the Fourth Proportional to 402,551,463.20, 603,614,618.40 and 172,260,363.20

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Solution

The fourth proportional to 402,551,463.20, 603,614,618.40 and 172,260,363.20 is: 258,299,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,551,463.20 : 603,614,618.40 = 172,260,363.20 : x
  2. Step 2: Convert to fraction form
    402,551,463.20/603,614,618.40 = 172,260,363.20/x
  3. Step 3: Cross multiply
    402,551,463.20x = 603,614,618.40 × 172,260,363.20
  4. Step 4: Simplify right side
    402,551,463.20x = 103,978,873,398,413,392
  5. Step 5: Solve for x
    x = 103,978,873,398,413,392/402,551,463.20
  6. Step 6: Final answer
    x = 258,299,578.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.