Home / 12,793,129.20-19,182,695.40-5,211,529.20

Finding the Fourth Proportional to 12,793,129.20, 19,182,695.40 and 5,211,529.20

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Solution

The fourth proportional to 12,793,129.20, 19,182,695.40 and 5,211,529.20 is: 7,814,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793,129.20 : 19,182,695.40 = 5,211,529.20 : x
  2. Step 2: Convert to fraction form
    12,793,129.20/19,182,695.40 = 5,211,529.20/x
  3. Step 3: Cross multiply
    12,793,129.20x = 19,182,695.40 × 5,211,529.20
  4. Step 4: Simplify right side
    12,793,129.20x = 99,971,177,211,805.67
  5. Step 5: Solve for x
    x = 99,971,177,211,805.67/12,793,129.20
  6. Step 6: Final answer
    x = 7,814,442.87

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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.