Home / 139,973,760.45-209,960,640.68-42,944,443.65

Finding the Fourth Proportional to 139,973,760.45, 209,960,640.68 and 42,944,443.65

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Solution

The fourth proportional to 139,973,760.45, 209,960,640.68 and 42,944,443.65 is: 64,416,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973,760.45 : 209,960,640.68 = 42,944,443.65 : x
  2. Step 2: Convert to fraction form
    139,973,760.45/209,960,640.68 = 42,944,443.65/x
  3. Step 3: Cross multiply
    139,973,760.45x = 209,960,640.68 × 42,944,443.65
  4. Step 4: Simplify right side
    139,973,760.45x = 9,016,642,902,185,436
  5. Step 5: Solve for x
    x = 9,016,642,902,185,436/139,973,760.45
  6. Step 6: Final answer
    x = 64,416,665.48

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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.