Home / 13,479,621.40-20,219,432.10-12,849,765.40

Finding the Fourth Proportional to 13,479,621.40, 20,219,432.10 and 12,849,765.40

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Solution

The fourth proportional to 13,479,621.40, 20,219,432.10 and 12,849,765.40 is: 19,274,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,621.40 : 20,219,432.10 = 12,849,765.40 : x
  2. Step 2: Convert to fraction form
    13,479,621.40/20,219,432.10 = 12,849,765.40/x
  3. Step 3: Cross multiply
    13,479,621.40x = 20,219,432.10 × 12,849,765.40
  4. Step 4: Simplify right side
    13,479,621.40x = 259,814,959,006,229.38
  5. Step 5: Solve for x
    x = 259,814,959,006,229.38/13,479,621.40
  6. Step 6: Final answer
    x = 19,274,648.10

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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.