Home / 13,486,515.20-20,229,772.80-8,101,246.40

Finding the Fourth Proportional to 13,486,515.20, 20,229,772.80 and 8,101,246.40

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Solution

The fourth proportional to 13,486,515.20, 20,229,772.80 and 8,101,246.40 is: 12,151,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,515.20 : 20,229,772.80 = 8,101,246.40 : x
  2. Step 2: Convert to fraction form
    13,486,515.20/20,229,772.80 = 8,101,246.40/x
  3. Step 3: Cross multiply
    13,486,515.20x = 20,229,772.80 × 8,101,246.40
  4. Step 4: Simplify right side
    13,486,515.20x = 163,886,374,068,817.94
  5. Step 5: Solve for x
    x = 163,886,374,068,817.94/13,486,515.20
  6. Step 6: Final answer
    x = 12,151,869.60

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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.