Home / 115,090,233.92-172,486,546.64-86,108,984.72

Finding the Fourth Proportional to 115,090,233.92, 172,486,546.64 and 86,108,984.72

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Solution

The fourth proportional to 115,090,233.92, 172,486,546.64 and 86,108,984.72 is: 129,052,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090,233.92 : 172,486,546.64 = 86,108,984.72 : x
  2. Step 2: Convert to fraction form
    115,090,233.92/172,486,546.64 = 86,108,984.72/x
  3. Step 3: Cross multiply
    115,090,233.92x = 172,486,546.64 × 86,108,984.72
  4. Step 4: Simplify right side
    115,090,233.92x = 14,852,641,409,029,326
  5. Step 5: Solve for x
    x = 14,852,641,409,029,326/115,090,233.92
  6. Step 6: Final answer
    x = 129,052,143.72

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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.