Home / 128,932,231.20-193,398,346.80-88,117,562.40

Finding the Fourth Proportional to 128,932,231.20, 193,398,346.80 and 88,117,562.40

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Solution

The fourth proportional to 128,932,231.20, 193,398,346.80 and 88,117,562.40 is: 132,176,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,932,231.20 : 193,398,346.80 = 88,117,562.40 : x
  2. Step 2: Convert to fraction form
    128,932,231.20/193,398,346.80 = 88,117,562.40/x
  3. Step 3: Cross multiply
    128,932,231.20x = 193,398,346.80 × 88,117,562.40
  4. Step 4: Simplify right side
    128,932,231.20x = 17,041,790,892,205,842
  5. Step 5: Solve for x
    x = 17,041,790,892,205,842/128,932,231.20
  6. Step 6: Final answer
    x = 132,176,343.60

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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.