Home / 2,785,346.78-4,178,020.20-1,838,496.02

Finding the Fourth Proportional to 2,785,346.78, 4,178,020.20 and 1,838,496.02

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Solution

The fourth proportional to 2,785,346.78, 4,178,020.20 and 1,838,496.02 is: 2,757,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785,346.78 : 4,178,020.20 = 1,838,496.02 : x
  2. Step 2: Convert to fraction form
    2,785,346.78/4,178,020.20 = 1,838,496.02/x
  3. Step 3: Cross multiply
    2,785,346.78x = 4,178,020.20 × 1,838,496.02
  4. Step 4: Simplify right side
    2,785,346.78x = 7,681,273,509,179.61
  5. Step 5: Solve for x
    x = 7,681,273,509,179.61/2,785,346.78
  6. Step 6: Final answer
    x = 2,757,744.05

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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.