Home / 21,062,764.20-31,594,146.30-18,711,301.80

Finding the Fourth Proportional to 21,062,764.20, 31,594,146.30 and 18,711,301.80

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Solution

The fourth proportional to 21,062,764.20, 31,594,146.30 and 18,711,301.80 is: 28,066,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,764.20 : 31,594,146.30 = 18,711,301.80 : x
  2. Step 2: Convert to fraction form
    21,062,764.20/31,594,146.30 = 18,711,301.80/x
  3. Step 3: Cross multiply
    21,062,764.20x = 31,594,146.30 × 18,711,301.80
  4. Step 4: Simplify right side
    21,062,764.20x = 591,167,606,532,653.38
  5. Step 5: Solve for x
    x = 591,167,606,532,653.38/21,062,764.20
  6. Step 6: Final answer
    x = 28,066,952.70

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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.