Home / 521,468,051.40-782,202,077.10-157,962,407.40

Finding the Fourth Proportional to 521,468,051.40, 782,202,077.10 and 157,962,407.40

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Solution

The fourth proportional to 521,468,051.40, 782,202,077.10 and 157,962,407.40 is: 236,943,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,468,051.40 : 782,202,077.10 = 157,962,407.40 : x
  2. Step 2: Convert to fraction form
    521,468,051.40/782,202,077.10 = 157,962,407.40/x
  3. Step 3: Cross multiply
    521,468,051.40x = 782,202,077.10 × 157,962,407.40
  4. Step 4: Simplify right side
    521,468,051.40x = 123,558,523,171,996,416
  5. Step 5: Solve for x
    x = 123,558,523,171,996,416/521,468,051.40
  6. Step 6: Final answer
    x = 236,943,611.10

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Similar ratio
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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.