Home / 9,120,869.20-13,672,279.80-4,320,120.40

Finding the Fourth Proportional to 9,120,869.20, 13,672,279.80 and 4,320,120.40

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Solution

The fourth proportional to 9,120,869.20, 13,672,279.80 and 4,320,120.40 is: 6,475,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,869.20 : 13,672,279.80 = 4,320,120.40 : x
  2. Step 2: Convert to fraction form
    9,120,869.20/13,672,279.80 = 4,320,120.40/x
  3. Step 3: Cross multiply
    9,120,869.20x = 13,672,279.80 × 4,320,120.40
  4. Step 4: Simplify right side
    9,120,869.20x = 59,065,894,878,487.93
  5. Step 5: Solve for x
    x = 59,065,894,878,487.93/9,120,869.20
  6. Step 6: Final answer
    x = 6,475,906.36

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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.