Home / 80,496,031.90-120,744,047.85-74,827,327.90

Finding the Fourth Proportional to 80,496,031.90, 120,744,047.85 and 74,827,327.90

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Solution

The fourth proportional to 80,496,031.90, 120,744,047.85 and 74,827,327.90 is: 112,240,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496,031.90 : 120,744,047.85 = 74,827,327.90 : x
  2. Step 2: Convert to fraction form
    80,496,031.90/120,744,047.85 = 74,827,327.90/x
  3. Step 3: Cross multiply
    80,496,031.90x = 120,744,047.85 × 74,827,327.90
  4. Step 4: Simplify right side
    80,496,031.90x = 9,034,954,460,445,240
  5. Step 5: Solve for x
    x = 9,034,954,460,445,240/80,496,031.90
  6. Step 6: Final answer
    x = 112,240,991.85

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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.