Home / 13,506,847.20-18,641,307.87-8,282,979

Finding the Fourth Proportional to 13,506,847.20, 18,641,307.87 and 8,282,979

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Solution

The fourth proportional to 13,506,847.20, 18,641,307.87 and 8,282,979 is: 11,431,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506,847.20 : 18,641,307.87 = 8,282,979 : x
  2. Step 2: Convert to fraction form
    13,506,847.20/18,641,307.87 = 8,282,979/x
  3. Step 3: Cross multiply
    13,506,847.20x = 18,641,307.87 × 8,282,979
  4. Step 4: Simplify right side
    13,506,847.20x = 154,405,561,619,744.75
  5. Step 5: Solve for x
    x = 154,405,561,619,744.75/13,506,847.20
  6. Step 6: Final answer
    x = 11,431,650.88

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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.