Home / 2,187,566.41-3,019,013.52-1,207,700.20

Finding the Fourth Proportional to 2,187,566.41, 3,019,013.52 and 1,207,700.20

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Solution

The fourth proportional to 2,187,566.41, 3,019,013.52 and 1,207,700.20 is: 1,666,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,566.41 : 3,019,013.52 = 1,207,700.20 : x
  2. Step 2: Convert to fraction form
    2,187,566.41/3,019,013.52 = 1,207,700.20/x
  3. Step 3: Cross multiply
    2,187,566.41x = 3,019,013.52 × 1,207,700.20
  4. Step 4: Simplify right side
    2,187,566.41x = 3,646,063,231,906.70
  5. Step 5: Solve for x
    x = 3,646,063,231,906.70/2,187,566.41
  6. Step 6: Final answer
    x = 1,666,721.16

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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.