Home / 157,906,429.23-217,896,248.64-87,340,520.66

Finding the Fourth Proportional to 157,906,429.23, 217,896,248.64 and 87,340,520.66

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Solution

The fourth proportional to 157,906,429.23, 217,896,248.64 and 87,340,520.66 is: 120,521,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,906,429.23 : 217,896,248.64 = 87,340,520.66 : x
  2. Step 2: Convert to fraction form
    157,906,429.23/217,896,248.64 = 87,340,520.66/x
  3. Step 3: Cross multiply
    157,906,429.23x = 217,896,248.64 × 87,340,520.66
  4. Step 4: Simplify right side
    157,906,429.23x = 19,031,171,806,377,928
  5. Step 5: Solve for x
    x = 19,031,171,806,377,928/157,906,429.23
  6. Step 6: Final answer
    x = 120,521,829.91

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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.