Home / 521,552,567.70-782,328,851.55-314,928,306.90

Finding the Fourth Proportional to 521,552,567.70, 782,328,851.55 and 314,928,306.90

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Solution

The fourth proportional to 521,552,567.70, 782,328,851.55 and 314,928,306.90 is: 472,392,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,552,567.70 : 782,328,851.55 = 314,928,306.90 : x
  2. Step 2: Convert to fraction form
    521,552,567.70/782,328,851.55 = 314,928,306.90/x
  3. Step 3: Cross multiply
    521,552,567.70x = 782,328,851.55 × 314,928,306.90
  4. Step 4: Simplify right side
    521,552,567.70x = 246,377,500,657,662,912
  5. Step 5: Solve for x
    x = 246,377,500,657,662,912/521,552,567.70
  6. Step 6: Final answer
    x = 472,392,460.35

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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.