Home / 13,826,459.60-20,739,689.40-8,781,390.80

Finding the Fourth Proportional to 13,826,459.60, 20,739,689.40 and 8,781,390.80

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Solution

The fourth proportional to 13,826,459.60, 20,739,689.40 and 8,781,390.80 is: 13,172,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826,459.60 : 20,739,689.40 = 8,781,390.80 : x
  2. Step 2: Convert to fraction form
    13,826,459.60/20,739,689.40 = 8,781,390.80/x
  3. Step 3: Cross multiply
    13,826,459.60x = 20,739,689.40 × 8,781,390.80
  4. Step 4: Simplify right side
    13,826,459.60x = 182,123,317,692,017.53
  5. Step 5: Solve for x
    x = 182,123,317,692,017.53/13,826,459.60
  6. Step 6: Final answer
    x = 13,172,086.20

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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.