Home / 521,636,611.80-781,957,253.70-194,024,400.60

Finding the Fourth Proportional to 521,636,611.80, 781,957,253.70 and 194,024,400.60

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Solution

The fourth proportional to 521,636,611.80, 781,957,253.70 and 194,024,400.60 is: 290,851,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,636,611.80 : 781,957,253.70 = 194,024,400.60 : x
  2. Step 2: Convert to fraction form
    521,636,611.80/781,957,253.70 = 194,024,400.60/x
  3. Step 3: Cross multiply
    521,636,611.80x = 781,957,253.70 × 194,024,400.60
  4. Step 4: Simplify right side
    521,636,611.80x = 151,718,787,443,964,640
  5. Step 5: Solve for x
    x = 151,718,787,443,964,640/521,636,611.80
  6. Step 6: Final answer
    x = 290,851,493.19

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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.