Home / 213,932,321.16-320,805,036.18-75,711,990.21

Finding the Fourth Proportional to 213,932,321.16, 320,805,036.18 and 75,711,990.21

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Solution

The fourth proportional to 213,932,321.16, 320,805,036.18 and 75,711,990.21 is: 113,534,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,932,321.16 : 320,805,036.18 = 75,711,990.21 : x
  2. Step 2: Convert to fraction form
    213,932,321.16/320,805,036.18 = 75,711,990.21/x
  3. Step 3: Cross multiply
    213,932,321.16x = 320,805,036.18 × 75,711,990.21
  4. Step 4: Simplify right side
    213,932,321.16x = 24,288,787,758,578,856
  5. Step 5: Solve for x
    x = 24,288,787,758,578,856/213,932,321.16
  6. Step 6: Final answer
    x = 113,534,914.35

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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.