Home / 19,155,672.90-28,747,506.15-13,486,968.90

Finding the Fourth Proportional to 19,155,672.90, 28,747,506.15 and 13,486,968.90

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Solution

The fourth proportional to 19,155,672.90, 28,747,506.15 and 13,486,968.90 is: 20,240,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155,672.90 : 28,747,506.15 = 13,486,968.90 : x
  2. Step 2: Convert to fraction form
    19,155,672.90/28,747,506.15 = 13,486,968.90/x
  3. Step 3: Cross multiply
    19,155,672.90x = 28,747,506.15 × 13,486,968.90
  4. Step 4: Simplify right side
    19,155,672.90x = 387,716,721,397,608.75
  5. Step 5: Solve for x
    x = 387,716,721,397,608.75/19,155,672.90
  6. Step 6: Final answer
    x = 20,240,308.10

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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.