Home / 80,744,490.70-120,972,394.05-49,137,966.70

Finding the Fourth Proportional to 80,744,490.70, 120,972,394.05 and 49,137,966.70

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Solution

The fourth proportional to 80,744,490.70, 120,972,394.05 and 49,137,966.70 is: 73,619,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,744,490.70 : 120,972,394.05 = 49,137,966.70 : x
  2. Step 2: Convert to fraction form
    80,744,490.70/120,972,394.05 = 49,137,966.70/x
  3. Step 3: Cross multiply
    80,744,490.70x = 120,972,394.05 × 49,137,966.70
  4. Step 4: Simplify right side
    80,744,490.70x = 5,944,337,470,448,178
  5. Step 5: Solve for x
    x = 5,944,337,470,448,178/80,744,490.70
  6. Step 6: Final answer
    x = 73,619,109.10

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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.