Home / 12,458,520.30-18,687,780.45-4,380,617.10

Finding the Fourth Proportional to 12,458,520.30, 18,687,780.45 and 4,380,617.10

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Solution

The fourth proportional to 12,458,520.30, 18,687,780.45 and 4,380,617.10 is: 6,570,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,520.30 : 18,687,780.45 = 4,380,617.10 : x
  2. Step 2: Convert to fraction form
    12,458,520.30/18,687,780.45 = 4,380,617.10/x
  3. Step 3: Cross multiply
    12,458,520.30x = 18,687,780.45 × 4,380,617.10
  4. Step 4: Simplify right side
    12,458,520.30x = 81,864,010,600,315.69
  5. Step 5: Solve for x
    x = 81,864,010,600,315.69/12,458,520.30
  6. Step 6: Final answer
    x = 6,570,925.65

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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.