Home / 138,452,764.35-191,123,645.33-86,267,583.21

Finding the Fourth Proportional to 138,452,764.35, 191,123,645.33 and 86,267,583.21

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Solution

The fourth proportional to 138,452,764.35, 191,123,645.33 and 86,267,583.21 is: 119,085,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,764.35 : 191,123,645.33 = 86,267,583.21 : x
  2. Step 2: Convert to fraction form
    138,452,764.35/191,123,645.33 = 86,267,583.21/x
  3. Step 3: Cross multiply
    138,452,764.35x = 191,123,645.33 × 86,267,583.21
  4. Step 4: Simplify right side
    138,452,764.35x = 16,487,774,976,276,790
  5. Step 5: Solve for x
    x = 16,487,774,976,276,790/138,452,764.35
  6. Step 6: Final answer
    x = 119,085,921.13

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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.