Home / 10,781,605.60-16,172,408.40-5,112,901.60

Finding the Fourth Proportional to 10,781,605.60, 16,172,408.40 and 5,112,901.60

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Solution

The fourth proportional to 10,781,605.60, 16,172,408.40 and 5,112,901.60 is: 7,669,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,605.60 : 16,172,408.40 = 5,112,901.60 : x
  2. Step 2: Convert to fraction form
    10,781,605.60/16,172,408.40 = 5,112,901.60/x
  3. Step 3: Cross multiply
    10,781,605.60x = 16,172,408.40 × 5,112,901.60
  4. Step 4: Simplify right side
    10,781,605.60x = 82,687,932,784,213.44
  5. Step 5: Solve for x
    x = 82,687,932,784,213.44/10,781,605.60
  6. Step 6: Final answer
    x = 7,669,352.40

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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.