Home / 20,986,368.10-28,960,423.38-11,693,458.02

Finding the Fourth Proportional to 20,986,368.10, 28,960,423.38 and 11,693,458.02

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Solution

The fourth proportional to 20,986,368.10, 28,960,423.38 and 11,693,458.02 is: 16,136,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,368.10 : 28,960,423.38 = 11,693,458.02 : x
  2. Step 2: Convert to fraction form
    20,986,368.10/28,960,423.38 = 11,693,458.02/x
  3. Step 3: Cross multiply
    20,986,368.10x = 28,960,423.38 × 11,693,458.02
  4. Step 4: Simplify right side
    20,986,368.10x = 338,647,495,035,456.50
  5. Step 5: Solve for x
    x = 338,647,495,035,456.50/20,986,368.10
  6. Step 6: Final answer
    x = 16,136,546.04

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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.