Home / 12,939,348.20-19,402,023.90-5,367,079.40

Finding the Fourth Proportional to 12,939,348.20, 19,402,023.90 and 5,367,079.40

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Solution

The fourth proportional to 12,939,348.20, 19,402,023.90 and 5,367,079.40 is: 8,047,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,348.20 : 19,402,023.90 = 5,367,079.40 : x
  2. Step 2: Convert to fraction form
    12,939,348.20/19,402,023.90 = 5,367,079.40/x
  3. Step 3: Cross multiply
    12,939,348.20x = 19,402,023.90 × 5,367,079.40
  4. Step 4: Simplify right side
    12,939,348.20x = 104,132,202,791,997.66
  5. Step 5: Solve for x
    x = 104,132,202,791,997.66/12,939,348.20
  6. Step 6: Final answer
    x = 8,047,716.25

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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.