Home / 9,890,781.28-14,836,171.92-5,400,607.84

Finding the Fourth Proportional to 9,890,781.28, 14,836,171.92 and 5,400,607.84

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Solution

The fourth proportional to 9,890,781.28, 14,836,171.92 and 5,400,607.84 is: 8,100,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890,781.28 : 14,836,171.92 = 5,400,607.84 : x
  2. Step 2: Convert to fraction form
    9,890,781.28/14,836,171.92 = 5,400,607.84/x
  3. Step 3: Cross multiply
    9,890,781.28x = 14,836,171.92 × 5,400,607.84
  4. Step 4: Simplify right side
    9,890,781.28x = 80,124,346,386,739.84
  5. Step 5: Solve for x
    x = 80,124,346,386,739.84/9,890,781.28
  6. Step 6: Final answer
    x = 8,100,911.76

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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.