Home / 521,552,306.70-782,328,460.05-314,928,045.90

Finding the Fourth Proportional to 521,552,306.70, 782,328,460.05 and 314,928,045.90

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Solution

The fourth proportional to 521,552,306.70, 782,328,460.05 and 314,928,045.90 is: 472,392,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,552,306.70 : 782,328,460.05 = 314,928,045.90 : x
  2. Step 2: Convert to fraction form
    521,552,306.70/782,328,460.05 = 314,928,045.90/x
  3. Step 3: Cross multiply
    521,552,306.70x = 782,328,460.05 × 314,928,045.90
  4. Step 4: Simplify right side
    521,552,306.70x = 246,377,173,175,502,688
  5. Step 5: Solve for x
    x = 246,377,173,175,502,688/521,552,306.70
  6. Step 6: Final answer
    x = 472,392,068.85

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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.