Home / 80,753,758.20-120,962,675.70-67,316,830.20

Finding the Fourth Proportional to 80,753,758.20, 120,962,675.70 and 67,316,830.20

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Solution

The fourth proportional to 80,753,758.20, 120,962,675.70 and 67,316,830.20 is: 100,835,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,753,758.20 : 120,962,675.70 = 67,316,830.20 : x
  2. Step 2: Convert to fraction form
    80,753,758.20/120,962,675.70 = 67,316,830.20/x
  3. Step 3: Cross multiply
    80,753,758.20x = 120,962,675.70 × 67,316,830.20
  4. Step 4: Simplify right side
    80,753,758.20x = 8,142,823,900,634,567
  5. Step 5: Solve for x
    x = 8,142,823,900,634,567/80,753,758.20
  6. Step 6: Final answer
    x = 100,835,231.48

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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.