Home / 19,791,718.40-29,690,342.40-8,432,076.80

Finding the Fourth Proportional to 19,791,718.40, 29,690,342.40 and 8,432,076.80

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Solution

The fourth proportional to 19,791,718.40, 29,690,342.40 and 8,432,076.80 is: 12,649,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791,718.40 : 29,690,342.40 = 8,432,076.80 : x
  2. Step 2: Convert to fraction form
    19,791,718.40/29,690,342.40 = 8,432,076.80/x
  3. Step 3: Cross multiply
    19,791,718.40x = 29,690,342.40 × 8,432,076.80
  4. Step 4: Simplify right side
    19,791,718.40x = 250,351,247,335,096.34
  5. Step 5: Solve for x
    x = 250,351,247,335,096.34/19,791,718.40
  6. Step 6: Final answer
    x = 12,649,293.12

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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.