Home / 20,819,389.97-28,679,422.26-17,711,960.96

Finding the Fourth Proportional to 20,819,389.97, 28,679,422.26 and 17,711,960.96

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Solution

The fourth proportional to 20,819,389.97, 28,679,422.26 and 17,711,960.96 is: 24,398,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,389.97 : 28,679,422.26 = 17,711,960.96 : x
  2. Step 2: Convert to fraction form
    20,819,389.97/28,679,422.26 = 17,711,960.96/x
  3. Step 3: Cross multiply
    20,819,389.97x = 28,679,422.26 × 17,711,960.96
  4. Step 4: Simplify right side
    20,819,389.97x = 507,968,807,281,077.81
  5. Step 5: Solve for x
    x = 507,968,807,281,077.81/20,819,389.97
  6. Step 6: Final answer
    x = 24,398,832.44

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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.