Home / 12,936,727.28-17,852,767.84-7,135,665.68

Finding the Fourth Proportional to 12,936,727.28, 17,852,767.84 and 7,135,665.68

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Solution

The fourth proportional to 12,936,727.28, 17,852,767.84 and 7,135,665.68 is: 9,847,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936,727.28 : 17,852,767.84 = 7,135,665.68 : x
  2. Step 2: Convert to fraction form
    12,936,727.28/17,852,767.84 = 7,135,665.68/x
  3. Step 3: Cross multiply
    12,936,727.28x = 17,852,767.84 × 7,135,665.68
  4. Step 4: Simplify right side
    12,936,727.28x = 127,391,382,768,895.72
  5. Step 5: Solve for x
    x = 127,391,382,768,895.72/12,936,727.28
  6. Step 6: Final answer
    x = 9,847,265.08

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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.