Home / 13,806,778.36-20,713,157.04-5,287,115.20

Finding the Fourth Proportional to 13,806,778.36, 20,713,157.04 and 5,287,115.20

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Solution

The fourth proportional to 13,806,778.36, 20,713,157.04 and 5,287,115.20 is: 7,931,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806,778.36 : 20,713,157.04 = 5,287,115.20 : x
  2. Step 2: Convert to fraction form
    13,806,778.36/20,713,157.04 = 5,287,115.20/x
  3. Step 3: Cross multiply
    13,806,778.36x = 20,713,157.04 × 5,287,115.20
  4. Step 4: Simplify right side
    13,806,778.36x = 109,512,847,426,171
  5. Step 5: Solve for x
    x = 109,512,847,426,171/13,806,778.36
  6. Step 6: Final answer
    x = 7,931,817.59

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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.