Home / 521,554,054.20-782,331,081.30-314,929,793.40

Finding the Fourth Proportional to 521,554,054.20, 782,331,081.30 and 314,929,793.40

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Solution

The fourth proportional to 521,554,054.20, 782,331,081.30 and 314,929,793.40 is: 472,394,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,554,054.20 : 782,331,081.30 = 314,929,793.40 : x
  2. Step 2: Convert to fraction form
    521,554,054.20/782,331,081.30 = 314,929,793.40/x
  3. Step 3: Cross multiply
    521,554,054.20x = 782,331,081.30 × 314,929,793.40
  4. Step 4: Simplify right side
    521,554,054.20x = 246,379,365,804,207,584
  5. Step 5: Solve for x
    x = 246,379,365,804,207,584/521,554,054.20
  6. Step 6: Final answer
    x = 472,394,690.10

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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.