Home / 15,287,921.98-21,096,695.20-8,318,626.90

Finding the Fourth Proportional to 15,287,921.98, 21,096,695.20 and 8,318,626.90

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Solution

The fourth proportional to 15,287,921.98, 21,096,695.20 and 8,318,626.90 is: 11,479,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,921.98 : 21,096,695.20 = 8,318,626.90 : x
  2. Step 2: Convert to fraction form
    15,287,921.98/21,096,695.20 = 8,318,626.90/x
  3. Step 3: Cross multiply
    15,287,921.98x = 21,096,695.20 × 8,318,626.90
  4. Step 4: Simplify right side
    15,287,921.98x = 175,495,536,191,820.88
  5. Step 5: Solve for x
    x = 175,495,536,191,820.88/15,287,921.98
  6. Step 6: Final answer
    x = 11,479,358.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.