Home / 12,120,986.36-16,727,314.42-6,614,715.88

Finding the Fourth Proportional to 12,120,986.36, 16,727,314.42 and 6,614,715.88

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Solution

The fourth proportional to 12,120,986.36, 16,727,314.42 and 6,614,715.88 is: 9,128,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,986.36 : 16,727,314.42 = 6,614,715.88 : x
  2. Step 2: Convert to fraction form
    12,120,986.36/16,727,314.42 = 6,614,715.88/x
  3. Step 3: Cross multiply
    12,120,986.36x = 16,727,314.42 × 6,614,715.88
  4. Step 4: Simplify right side
    12,120,986.36x = 110,646,432,221,605.61
  5. Step 5: Solve for x
    x = 110,646,432,221,605.61/12,120,986.36
  6. Step 6: Final answer
    x = 9,128,500.68

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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.