Home / 138,452,827.82-191,123,733.20-86,267,647.13

Finding the Fourth Proportional to 138,452,827.82, 191,123,733.20 and 86,267,647.13

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Solution

The fourth proportional to 138,452,827.82, 191,123,733.20 and 86,267,647.13 is: 119,086,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,827.82 : 191,123,733.20 = 86,267,647.13 : x
  2. Step 2: Convert to fraction form
    138,452,827.82/191,123,733.20 = 86,267,647.13/x
  3. Step 3: Cross multiply
    138,452,827.82x = 191,123,733.20 × 86,267,647.13
  4. Step 4: Simplify right side
    138,452,827.82x = 16,487,794,772,478,908
  5. Step 5: Solve for x
    x = 16,487,794,772,478,908/138,452,827.82
  6. Step 6: Final answer
    x = 119,086,009.53

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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.