Home / 12,456,616.90-18,684,925.35-11,700,789.70

Finding the Fourth Proportional to 12,456,616.90, 18,684,925.35 and 11,700,789.70

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Solution

The fourth proportional to 12,456,616.90, 18,684,925.35 and 11,700,789.70 is: 17,551,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,616.90 : 18,684,925.35 = 11,700,789.70 : x
  2. Step 2: Convert to fraction form
    12,456,616.90/18,684,925.35 = 11,700,789.70/x
  3. Step 3: Cross multiply
    12,456,616.90x = 18,684,925.35 × 11,700,789.70
  4. Step 4: Simplify right side
    12,456,616.90x = 218,628,382,080,548.91
  5. Step 5: Solve for x
    x = 218,628,382,080,548.91/12,456,616.90
  6. Step 6: Final answer
    x = 17,551,184.55

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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.