Home / 21,778,531.20-32,683,543.20-12,183,724.80

Finding the Fourth Proportional to 21,778,531.20, 32,683,543.20 and 12,183,724.80

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Solution

The fourth proportional to 21,778,531.20, 32,683,543.20 and 12,183,724.80 is: 18,284,396.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,531.20 : 32,683,543.20 = 12,183,724.80 : x
  2. Step 2: Convert to fraction form
    21,778,531.20/32,683,543.20 = 12,183,724.80/x
  3. Step 3: Cross multiply
    21,778,531.20x = 32,683,543.20 × 12,183,724.80
  4. Step 4: Simplify right side
    21,778,531.20x = 398,207,295,837,711.38
  5. Step 5: Solve for x
    x = 398,207,295,837,711.38/21,778,531.20
  6. Step 6: Final answer
    x = 18,284,396.33

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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.