Home / 76,985,748.80-115,508,114.40-75,776,609.60

Finding the Fourth Proportional to 76,985,748.80, 115,508,114.40 and 75,776,609.60

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Solution

The fourth proportional to 76,985,748.80, 115,508,114.40 and 75,776,609.60 is: 113,693,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985,748.80 : 115,508,114.40 = 75,776,609.60 : x
  2. Step 2: Convert to fraction form
    76,985,748.80/115,508,114.40 = 75,776,609.60/x
  3. Step 3: Cross multiply
    76,985,748.80x = 115,508,114.40 × 75,776,609.60
  4. Step 4: Simplify right side
    76,985,748.80x = 8,752,813,290,520,938
  5. Step 5: Solve for x
    x = 8,752,813,290,520,938/76,985,748.80
  6. Step 6: Final answer
    x = 113,693,942.41

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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.