Home / 12,889,659.38-17,788,186.77-7,088,889.74

Finding the Fourth Proportional to 12,889,659.38, 17,788,186.77 and 7,088,889.74

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Solution

The fourth proportional to 12,889,659.38, 17,788,186.77 and 7,088,889.74 is: 9,782,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,659.38 : 17,788,186.77 = 7,088,889.74 : x
  2. Step 2: Convert to fraction form
    12,889,659.38/17,788,186.77 = 7,088,889.74/x
  3. Step 3: Cross multiply
    12,889,659.38x = 17,788,186.77 × 7,088,889.74
  4. Step 4: Simplify right side
    12,889,659.38x = 126,098,494,687,056.73
  5. Step 5: Solve for x
    x = 126,098,494,687,056.73/12,889,659.38
  6. Step 6: Final answer
    x = 9,782,919.08

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1.5x scale

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.