Home / 18,211,372.80-27,317,059.20-9,141,446.40

Finding the Fourth Proportional to 18,211,372.80, 27,317,059.20 and 9,141,446.40

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Solution

The fourth proportional to 18,211,372.80, 27,317,059.20 and 9,141,446.40 is: 13,712,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211,372.80 : 27,317,059.20 = 9,141,446.40 : x
  2. Step 2: Convert to fraction form
    18,211,372.80/27,317,059.20 = 9,141,446.40/x
  3. Step 3: Cross multiply
    18,211,372.80x = 27,317,059.20 × 9,141,446.40
  4. Step 4: Simplify right side
    18,211,372.80x = 249,717,432,482,426.88
  5. Step 5: Solve for x
    x = 249,717,432,482,426.88/18,211,372.80
  6. Step 6: Final answer
    x = 13,712,169.60

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Similar ratio
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1.5x scale

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.