Home / 13,681,986.30-20,510,149.05-5,168,043.90

Finding the Fourth Proportional to 13,681,986.30, 20,510,149.05 and 5,168,043.90

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Solution

The fourth proportional to 13,681,986.30, 20,510,149.05 and 5,168,043.90 is: 7,747,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681,986.30 : 20,510,149.05 = 5,168,043.90 : x
  2. Step 2: Convert to fraction form
    13,681,986.30/20,510,149.05 = 5,168,043.90/x
  3. Step 3: Cross multiply
    13,681,986.30x = 20,510,149.05 × 5,168,043.90
  4. Step 4: Simplify right side
    13,681,986.30x = 105,997,350,685,943.31
  5. Step 5: Solve for x
    x = 105,997,350,685,943.31/13,681,986.30
  6. Step 6: Final answer
    x = 7,747,219.47

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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.