Home / 4,919,947.90-7,382,053.10-2,642,815.28

Finding the Fourth Proportional to 4,919,947.90, 7,382,053.10 and 2,642,815.28

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Solution

The fourth proportional to 4,919,947.90, 7,382,053.10 and 2,642,815.28 is: 3,965,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919,947.90 : 7,382,053.10 = 2,642,815.28 : x
  2. Step 2: Convert to fraction form
    4,919,947.90/7,382,053.10 = 2,642,815.28/x
  3. Step 3: Cross multiply
    4,919,947.90x = 7,382,053.10 × 2,642,815.28
  4. Step 4: Simplify right side
    4,919,947.90x = 19,509,402,755,513.54
  5. Step 5: Solve for x
    x = 19,509,402,755,513.54/4,919,947.90
  6. Step 6: Final answer
    x = 3,965,367.76

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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.