Home / 20,712,930.59-28,596,090.80-18,414,729.88

Finding the Fourth Proportional to 20,712,930.59, 28,596,090.80 and 18,414,729.88

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Solution

The fourth proportional to 20,712,930.59, 28,596,090.80 and 18,414,729.88 is: 25,423,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,930.59 : 28,596,090.80 = 18,414,729.88 : x
  2. Step 2: Convert to fraction form
    20,712,930.59/28,596,090.80 = 18,414,729.88/x
  3. Step 3: Cross multiply
    20,712,930.59x = 28,596,090.80 × 18,414,729.88
  4. Step 4: Simplify right side
    20,712,930.59x = 526,589,287,611,444.50
  5. Step 5: Solve for x
    x = 526,589,287,611,444.50/20,712,930.59
  6. Step 6: Final answer
    x = 25,423,214.99

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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.