Home / 5,174,689,948.90-7,141,072,129.42-2,947,229,399.14

Finding the Fourth Proportional to 5,174,689,948.90, 7,141,072,129.42 and 2,947,229,399.14

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Solution

The fourth proportional to 5,174,689,948.90, 7,141,072,129.42 and 2,947,229,399.14 is: 4,067,176,570.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174,689,948.90 : 7,141,072,129.42 = 2,947,229,399.14 : x
  2. Step 2: Convert to fraction form
    5,174,689,948.90/7,141,072,129.42 = 2,947,229,399.14/x
  3. Step 3: Cross multiply
    5,174,689,948.90x = 7,141,072,129.42 × 2,947,229,399.14
  4. Step 4: Simplify right side
    5,174,689,948.90x = 21,046,377,721,205,907,456
  5. Step 5: Solve for x
    x = 21,046,377,721,205,907,456/5,174,689,948.90
  6. Step 6: Final answer
    x = 4,067,176,570.78

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1.5x scale

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.