Home / 138,452,781.60-191,123,668.53-86,267,600.24

Finding the Fourth Proportional to 138,452,781.60, 191,123,668.53 and 86,267,600.24

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Solution

The fourth proportional to 138,452,781.60, 191,123,668.53 and 86,267,600.24 is: 119,085,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,781.60 : 191,123,668.53 = 86,267,600.24 : x
  2. Step 2: Convert to fraction form
    138,452,781.60/191,123,668.53 = 86,267,600.24/x
  3. Step 3: Cross multiply
    138,452,781.60x = 191,123,668.53 × 86,267,600.24
  4. Step 4: Simplify right side
    138,452,781.60x = 16,487,780,232,192,690
  5. Step 5: Solve for x
    x = 16,487,780,232,192,690/138,452,781.60
  6. Step 6: Final answer
    x = 119,085,944.26

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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.