Home / 10,921,142.40-16,381,713.60-8,795,378.40

Finding the Fourth Proportional to 10,921,142.40, 16,381,713.60 and 8,795,378.40

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Solution

The fourth proportional to 10,921,142.40, 16,381,713.60 and 8,795,378.40 is: 13,193,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,142.40 : 16,381,713.60 = 8,795,378.40 : x
  2. Step 2: Convert to fraction form
    10,921,142.40/16,381,713.60 = 8,795,378.40/x
  3. Step 3: Cross multiply
    10,921,142.40x = 16,381,713.60 × 8,795,378.40
  4. Step 4: Simplify right side
    10,921,142.40x = 144,083,369,952,426.25
  5. Step 5: Solve for x
    x = 144,083,369,952,426.25/10,921,142.40
  6. Step 6: Final answer
    x = 13,193,067.60

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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.