Home / 138,169,147.12-190,593,490.92-89,276,575.12

Finding the Fourth Proportional to 138,169,147.12, 190,593,490.92 and 89,276,575.12

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Solution

The fourth proportional to 138,169,147.12, 190,593,490.92 and 89,276,575.12 is: 123,150,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,169,147.12 : 190,593,490.92 = 89,276,575.12 : x
  2. Step 2: Convert to fraction form
    138,169,147.12/190,593,490.92 = 89,276,575.12/x
  3. Step 3: Cross multiply
    138,169,147.12x = 190,593,490.92 × 89,276,575.12
  4. Step 4: Simplify right side
    138,169,147.12x = 17,015,534,109,502,418
  5. Step 5: Solve for x
    x = 17,015,534,109,502,418/138,169,147.12
  6. Step 6: Final answer
    x = 123,150,026.36

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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.