Home / 138,452,782.60-191,123,669.91-86,267,601.24

Finding the Fourth Proportional to 138,452,782.60, 191,123,669.91 and 86,267,601.24

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Solution

The fourth proportional to 138,452,782.60, 191,123,669.91 and 86,267,601.24 is: 119,085,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,782.60 : 191,123,669.91 = 86,267,601.24 : x
  2. Step 2: Convert to fraction form
    138,452,782.60/191,123,669.91 = 86,267,601.24/x
  3. Step 3: Cross multiply
    138,452,782.60x = 191,123,669.91 × 86,267,601.24
  4. Step 4: Simplify right side
    138,452,782.60x = 16,487,780,543,321,266
  5. Step 5: Solve for x
    x = 16,487,780,543,321,266/138,452,782.60
  6. Step 6: Final answer
    x = 119,085,945.65

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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.