Home / 80,744,501.20-120,972,409.80-49,137,977.20

Finding the Fourth Proportional to 80,744,501.20, 120,972,409.80 and 49,137,977.20

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Solution

The fourth proportional to 80,744,501.20, 120,972,409.80 and 49,137,977.20 is: 73,619,124.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,744,501.20 : 120,972,409.80 = 49,137,977.20 : x
  2. Step 2: Convert to fraction form
    80,744,501.20/120,972,409.80 = 49,137,977.20/x
  3. Step 3: Cross multiply
    80,744,501.20x = 120,972,409.80 × 49,137,977.20
  4. Step 4: Simplify right side
    80,744,501.20x = 5,944,339,514,581,457
  5. Step 5: Solve for x
    x = 5,944,339,514,581,457/80,744,501.20
  6. Step 6: Final answer
    x = 73,619,124.85

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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.