Home / 12,380,115.71-17,072,686.62-7,965,335.45

Finding the Fourth Proportional to 12,380,115.71, 17,072,686.62 and 7,965,335.45

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Solution

The fourth proportional to 12,380,115.71, 17,072,686.62 and 7,965,335.45 is: 10,984,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380,115.71 : 17,072,686.62 = 7,965,335.45 : x
  2. Step 2: Convert to fraction form
    12,380,115.71/17,072,686.62 = 7,965,335.45/x
  3. Step 3: Cross multiply
    12,380,115.71x = 17,072,686.62 × 7,965,335.45
  4. Step 4: Simplify right side
    12,380,115.71x = 135,989,675,875,663.27
  5. Step 5: Solve for x
    x = 135,989,675,875,663.27/12,380,115.71
  6. Step 6: Final answer
    x = 10,984,523.82

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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.