Home / 115,287,018.81-159,080,373.68-68,867,418.93

Finding the Fourth Proportional to 115,287,018.81, 159,080,373.68 and 68,867,418.93

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Solution

The fourth proportional to 115,287,018.81, 159,080,373.68 and 68,867,418.93 is: 95,027,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,287,018.81 : 159,080,373.68 = 68,867,418.93 : x
  2. Step 2: Convert to fraction form
    115,287,018.81/159,080,373.68 = 68,867,418.93/x
  3. Step 3: Cross multiply
    115,287,018.81x = 159,080,373.68 × 68,867,418.93
  4. Step 4: Simplify right side
    115,287,018.81x = 10,955,454,737,417,170
  5. Step 5: Solve for x
    x = 10,955,454,737,417,170/115,287,018.81
  6. Step 6: Final answer
    x = 95,027,652.29

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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.