Home / 7,206,870.32-9,945,480.65-3,943,685.28

Finding the Fourth Proportional to 7,206,870.32, 9,945,480.65 and 3,943,685.28

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Solution

The fourth proportional to 7,206,870.32, 9,945,480.65 and 3,943,685.28 is: 5,442,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,206,870.32 : 9,945,480.65 = 3,943,685.28 : x
  2. Step 2: Convert to fraction form
    7,206,870.32/9,945,480.65 = 3,943,685.28/x
  3. Step 3: Cross multiply
    7,206,870.32x = 9,945,480.65 × 3,943,685.28
  4. Step 4: Simplify right side
    7,206,870.32x = 39,221,845,622,211.40
  5. Step 5: Solve for x
    x = 39,221,845,622,211.40/7,206,870.32
  6. Step 6: Final answer
    x = 5,442,285.47

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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.