Home / 76,971,393.08-115,456,126.18-18,679,553.90

Finding the Fourth Proportional to 76,971,393.08, 115,456,126.18 and 18,679,553.90

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Solution

The fourth proportional to 76,971,393.08, 115,456,126.18 and 18,679,553.90 is: 28,019,097.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971,393.08 : 115,456,126.18 = 18,679,553.90 : x
  2. Step 2: Convert to fraction form
    76,971,393.08/115,456,126.18 = 18,679,553.90/x
  3. Step 3: Cross multiply
    76,971,393.08x = 115,456,126.18 × 18,679,553.90
  4. Step 4: Simplify right side
    76,971,393.08x = 2,156,668,932,064,511
  5. Step 5: Solve for x
    x = 2,156,668,932,064,511/76,971,393.08
  6. Step 6: Final answer
    x = 28,019,097.04

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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.