Home / 7,149,132.57-9,865,873.04-3,885,945.28

Finding the Fourth Proportional to 7,149,132.57, 9,865,873.04 and 3,885,945.28

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Solution

The fourth proportional to 7,149,132.57, 9,865,873.04 and 3,885,945.28 is: 5,362,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,132.57 : 9,865,873.04 = 3,885,945.28 : x
  2. Step 2: Convert to fraction form
    7,149,132.57/9,865,873.04 = 3,885,945.28/x
  3. Step 3: Cross multiply
    7,149,132.57x = 9,865,873.04 × 3,885,945.28
  4. Step 4: Simplify right side
    7,149,132.57x = 38,338,242,772,867.24
  5. Step 5: Solve for x
    x = 38,338,242,772,867.24/7,149,132.57
  6. Step 6: Final answer
    x = 5,362,642.59

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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.