Home / 117,422,320.40-175,566,610.20-86,811,318.80

Finding the Fourth Proportional to 117,422,320.40, 175,566,610.20 and 86,811,318.80

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Solution

The fourth proportional to 117,422,320.40, 175,566,610.20 and 86,811,318.80 is: 129,797,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,422,320.40 : 175,566,610.20 = 86,811,318.80 : x
  2. Step 2: Convert to fraction form
    117,422,320.40/175,566,610.20 = 86,811,318.80/x
  3. Step 3: Cross multiply
    117,422,320.40x = 175,566,610.20 × 86,811,318.80
  4. Step 4: Simplify right side
    117,422,320.40x = 15,241,168,968,707,530
  5. Step 5: Solve for x
    x = 15,241,168,968,707,530/117,422,320.40
  6. Step 6: Final answer
    x = 129,797,886.10

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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.