Home / 13,656,700.80-20,485,051.20-11,977,084.80

Finding the Fourth Proportional to 13,656,700.80, 20,485,051.20 and 11,977,084.80

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Solution

The fourth proportional to 13,656,700.80, 20,485,051.20 and 11,977,084.80 is: 17,965,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,700.80 : 20,485,051.20 = 11,977,084.80 : x
  2. Step 2: Convert to fraction form
    13,656,700.80/20,485,051.20 = 11,977,084.80/x
  3. Step 3: Cross multiply
    13,656,700.80x = 20,485,051.20 × 11,977,084.80
  4. Step 4: Simplify right side
    13,656,700.80x = 245,351,195,354,741.78
  5. Step 5: Solve for x
    x = 245,351,195,354,741.78/13,656,700.80
  6. Step 6: Final answer
    x = 17,965,627.20

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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.