Home / 20,207,848.20-30,311,772.30-12,145,691.40

Finding the Fourth Proportional to 20,207,848.20, 30,311,772.30 and 12,145,691.40

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Solution

The fourth proportional to 20,207,848.20, 30,311,772.30 and 12,145,691.40 is: 18,218,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207,848.20 : 30,311,772.30 = 12,145,691.40 : x
  2. Step 2: Convert to fraction form
    20,207,848.20/30,311,772.30 = 12,145,691.40/x
  3. Step 3: Cross multiply
    20,207,848.20x = 30,311,772.30 × 12,145,691.40
  4. Step 4: Simplify right side
    20,207,848.20x = 368,157,432,142,868.25
  5. Step 5: Solve for x
    x = 368,157,432,142,868.25/20,207,848.20
  6. Step 6: Final answer
    x = 18,218,537.10

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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.