Home / 155,822,523.75-215,016,507.59-86,198,474.79

Finding the Fourth Proportional to 155,822,523.75, 215,016,507.59 and 86,198,474.79

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Solution

The fourth proportional to 155,822,523.75, 215,016,507.59 and 86,198,474.79 is: 118,943,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,822,523.75 : 215,016,507.59 = 86,198,474.79 : x
  2. Step 2: Convert to fraction form
    155,822,523.75/215,016,507.59 = 86,198,474.79/x
  3. Step 3: Cross multiply
    155,822,523.75x = 215,016,507.59 × 86,198,474.79
  4. Step 4: Simplify right side
    155,822,523.75x = 18,534,095,008,499,468
  5. Step 5: Solve for x
    x = 18,534,095,008,499,468/155,822,523.75
  6. Step 6: Final answer
    x = 118,943,619.72

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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.