Home / 458,070,086.70-687,105,130.05-239,636,025.90

Finding the Fourth Proportional to 458,070,086.70, 687,105,130.05 and 239,636,025.90

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Solution

The fourth proportional to 458,070,086.70, 687,105,130.05 and 239,636,025.90 is: 359,454,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,070,086.70 : 687,105,130.05 = 239,636,025.90 : x
  2. Step 2: Convert to fraction form
    458,070,086.70/687,105,130.05 = 239,636,025.90/x
  3. Step 3: Cross multiply
    458,070,086.70x = 687,105,130.05 × 239,636,025.90
  4. Step 4: Simplify right side
    458,070,086.70x = 164,655,142,740,684,672
  5. Step 5: Solve for x
    x = 164,655,142,740,684,672/458,070,086.70
  6. Step 6: Final answer
    x = 359,454,038.85

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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.