Home / 20,832,040.30-31,248,060.45-18,711,525.10

Finding the Fourth Proportional to 20,832,040.30, 31,248,060.45 and 18,711,525.10

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Solution

The fourth proportional to 20,832,040.30, 31,248,060.45 and 18,711,525.10 is: 28,067,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,040.30 : 31,248,060.45 = 18,711,525.10 : x
  2. Step 2: Convert to fraction form
    20,832,040.30/31,248,060.45 = 18,711,525.10/x
  3. Step 3: Cross multiply
    20,832,040.30x = 31,248,060.45 × 18,711,525.10
  4. Step 4: Simplify right side
    20,832,040.30x = 584,698,867,436,492.38
  5. Step 5: Solve for x
    x = 584,698,867,436,492.38/20,832,040.30
  6. Step 6: Final answer
    x = 28,067,287.65

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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.