Home / 12,129,281.10-18,193,921.65-4,042,520.55

Finding the Fourth Proportional to 12,129,281.10, 18,193,921.65 and 4,042,520.55

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Solution

The fourth proportional to 12,129,281.10, 18,193,921.65 and 4,042,520.55 is: 6,063,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,281.10 : 18,193,921.65 = 4,042,520.55 : x
  2. Step 2: Convert to fraction form
    12,129,281.10/18,193,921.65 = 4,042,520.55/x
  3. Step 3: Cross multiply
    12,129,281.10x = 18,193,921.65 × 4,042,520.55
  4. Step 4: Simplify right side
    12,129,281.10x = 73,549,302,155,214.89
  5. Step 5: Solve for x
    x = 73,549,302,155,214.89/12,129,281.10
  6. Step 6: Final answer
    x = 6,063,780.83

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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.