Home / 13,788,916.80-20,683,375.20-7,816,948.80

Finding the Fourth Proportional to 13,788,916.80, 20,683,375.20 and 7,816,948.80

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Solution

The fourth proportional to 13,788,916.80, 20,683,375.20 and 7,816,948.80 is: 11,725,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788,916.80 : 20,683,375.20 = 7,816,948.80 : x
  2. Step 2: Convert to fraction form
    13,788,916.80/20,683,375.20 = 7,816,948.80/x
  3. Step 3: Cross multiply
    13,788,916.80x = 20,683,375.20 × 7,816,948.80
  4. Step 4: Simplify right side
    13,788,916.80x = 161,680,884,949,589.75
  5. Step 5: Solve for x
    x = 161,680,884,949,589.75/13,788,916.80
  6. Step 6: Final answer
    x = 11,725,423.20

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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.