Home / 9,120,871.20-13,672,282.80-4,320,122.40

Finding the Fourth Proportional to 9,120,871.20, 13,672,282.80 and 4,320,122.40

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Solution

The fourth proportional to 9,120,871.20, 13,672,282.80 and 4,320,122.40 is: 6,475,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,871.20 : 13,672,282.80 = 4,320,122.40 : x
  2. Step 2: Convert to fraction form
    9,120,871.20/13,672,282.80 = 4,320,122.40/x
  3. Step 3: Cross multiply
    9,120,871.20x = 13,672,282.80 × 4,320,122.40
  4. Step 4: Simplify right side
    9,120,871.20x = 59,065,935,183,414.73
  5. Step 5: Solve for x
    x = 59,065,935,183,414.73/9,120,871.20
  6. Step 6: Final answer
    x = 6,475,909.36

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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.