Home / 458,070,087.70-687,105,131.55-239,636,026.90

Finding the Fourth Proportional to 458,070,087.70, 687,105,131.55 and 239,636,026.90

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Solution

The fourth proportional to 458,070,087.70, 687,105,131.55 and 239,636,026.90 is: 359,454,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,070,087.70 : 687,105,131.55 = 239,636,026.90 : x
  2. Step 2: Convert to fraction form
    458,070,087.70/687,105,131.55 = 239,636,026.90/x
  3. Step 3: Cross multiply
    458,070,087.70x = 687,105,131.55 × 239,636,026.90
  4. Step 4: Simplify right side
    458,070,087.70x = 164,655,143,787,243,840
  5. Step 5: Solve for x
    x = 164,655,143,787,243,840/458,070,087.70
  6. Step 6: Final answer
    x = 359,454,040.35

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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.