Home / 521,363,131.20-782,149,672.80-152,897,371.20

Finding the Fourth Proportional to 521,363,131.20, 782,149,672.80 and 152,897,371.20

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Solution

The fourth proportional to 521,363,131.20, 782,149,672.80 and 152,897,371.20 is: 229,376,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,363,131.20 : 782,149,672.80 = 152,897,371.20 : x
  2. Step 2: Convert to fraction form
    521,363,131.20/782,149,672.80 = 152,897,371.20/x
  3. Step 3: Cross multiply
    521,363,131.20x = 782,149,672.80 × 152,897,371.20
  4. Step 4: Simplify right side
    521,363,131.20x = 119,588,628,856,060,128
  5. Step 5: Solve for x
    x = 119,588,628,856,060,128/521,363,131.20
  6. Step 6: Final answer
    x = 229,376,842.55

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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.