Home / 20,862,892.80-31,294,339.20-18,343,468.80

Finding the Fourth Proportional to 20,862,892.80, 31,294,339.20 and 18,343,468.80

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Solution

The fourth proportional to 20,862,892.80, 31,294,339.20 and 18,343,468.80 is: 27,515,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,892.80 : 31,294,339.20 = 18,343,468.80 : x
  2. Step 2: Convert to fraction form
    20,862,892.80/31,294,339.20 = 18,343,468.80/x
  3. Step 3: Cross multiply
    20,862,892.80x = 31,294,339.20 × 18,343,468.80
  4. Step 4: Simplify right side
    20,862,892.80x = 574,046,734,731,817
  5. Step 5: Solve for x
    x = 574,046,734,731,817/20,862,892.80
  6. Step 6: Final answer
    x = 27,515,203.20

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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.