Home / 157,211,468.16-216,942,972.86-86,646,864.52

Finding the Fourth Proportional to 157,211,468.16, 216,942,972.86 and 86,646,864.52

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Solution

The fourth proportional to 157,211,468.16, 216,942,972.86 and 86,646,864.52 is: 119,567,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,211,468.16 : 216,942,972.86 = 86,646,864.52 : x
  2. Step 2: Convert to fraction form
    157,211,468.16/216,942,972.86 = 86,646,864.52/x
  3. Step 3: Cross multiply
    157,211,468.16x = 216,942,972.86 × 86,646,864.52
  4. Step 4: Simplify right side
    157,211,468.16x = 18,797,428,377,966,456
  5. Step 5: Solve for x
    x = 18,797,428,377,966,456/157,211,468.16
  6. Step 6: Final answer
    x = 119,567,793.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.