Home / 12,928,727.68-17,841,781.62-7,127,717.20

Finding the Fourth Proportional to 12,928,727.68, 17,841,781.62 and 7,127,717.20

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Solution

The fourth proportional to 12,928,727.68, 17,841,781.62 and 7,127,717.20 is: 9,836,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,727.68 : 17,841,781.62 = 7,127,717.20 : x
  2. Step 2: Convert to fraction form
    12,928,727.68/17,841,781.62 = 7,127,717.20/x
  3. Step 3: Cross multiply
    12,928,727.68x = 17,841,781.62 × 7,127,717.20
  4. Step 4: Simplify right side
    12,928,727.68x = 127,171,173,731,517.88
  5. Step 5: Solve for x
    x = 127,171,173,731,517.88/12,928,727.68
  6. Step 6: Final answer
    x = 9,836,325.50

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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.