Home / 521,553,805.20-782,330,707.80-314,929,544.40

Finding the Fourth Proportional to 521,553,805.20, 782,330,707.80 and 314,929,544.40

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Solution

The fourth proportional to 521,553,805.20, 782,330,707.80 and 314,929,544.40 is: 472,394,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,553,805.20 : 782,330,707.80 = 314,929,544.40 : x
  2. Step 2: Convert to fraction form
    521,553,805.20/782,330,707.80 = 314,929,544.40/x
  3. Step 3: Cross multiply
    521,553,805.20x = 782,330,707.80 × 314,929,544.40
  4. Step 4: Simplify right side
    521,553,805.20x = 246,379,053,377,583,488
  5. Step 5: Solve for x
    x = 246,379,053,377,583,488/521,553,805.20
  6. Step 6: Final answer
    x = 472,394,316.60

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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.