Home / 10,780,881.60-16,171,322.40-7,741,826.40

Finding the Fourth Proportional to 10,780,881.60, 16,171,322.40 and 7,741,826.40

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Solution

The fourth proportional to 10,780,881.60, 16,171,322.40 and 7,741,826.40 is: 11,612,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,881.60 : 16,171,322.40 = 7,741,826.40 : x
  2. Step 2: Convert to fraction form
    10,780,881.60/16,171,322.40 = 7,741,826.40/x
  3. Step 3: Cross multiply
    10,780,881.60x = 16,171,322.40 × 7,741,826.40
  4. Step 4: Simplify right side
    10,780,881.60x = 125,195,570,679,231.38
  5. Step 5: Solve for x
    x = 125,195,570,679,231.38/10,780,881.60
  6. Step 6: Final answer
    x = 11,612,739.60

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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.