Home / 5,187,767.85-7,781,935.61-2,155,440.38

Finding the Fourth Proportional to 5,187,767.85, 7,781,935.61 and 2,155,440.38

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Solution

The fourth proportional to 5,187,767.85, 7,781,935.61 and 2,155,440.38 is: 3,233,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,767.85 : 7,781,935.61 = 2,155,440.38 : x
  2. Step 2: Convert to fraction form
    5,187,767.85/7,781,935.61 = 2,155,440.38/x
  3. Step 3: Cross multiply
    5,187,767.85x = 7,781,935.61 × 2,155,440.38
  4. Step 4: Simplify right side
    5,187,767.85x = 16,773,498,214,832.85
  5. Step 5: Solve for x
    x = 16,773,498,214,832.85/5,187,767.85
  6. Step 6: Final answer
    x = 3,233,278.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.