Home / 81,154,540.16-121,444,455.17-50,463,572.12

Finding the Fourth Proportional to 81,154,540.16, 121,444,455.17 and 50,463,572.12

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Solution

The fourth proportional to 81,154,540.16, 121,444,455.17 and 50,463,572.12 is: 75,516,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,154,540.16 : 121,444,455.17 = 50,463,572.12 : x
  2. Step 2: Convert to fraction form
    81,154,540.16/121,444,455.17 = 50,463,572.12/x
  3. Step 3: Cross multiply
    81,154,540.16x = 121,444,455.17 × 50,463,572.12
  4. Step 4: Simplify right side
    81,154,540.16x = 6,128,521,021,185,862
  5. Step 5: Solve for x
    x = 6,128,521,021,185,862/81,154,540.16
  6. Step 6: Final answer
    x = 75,516,674.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.