Home / 7,711,306.30-10,628,319.99-5,128,371.82

Finding the Fourth Proportional to 7,711,306.30, 10,628,319.99 and 5,128,371.82

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Solution

The fourth proportional to 7,711,306.30, 10,628,319.99 and 5,128,371.82 is: 7,068,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711,306.30 : 10,628,319.99 = 5,128,371.82 : x
  2. Step 2: Convert to fraction form
    7,711,306.30/10,628,319.99 = 5,128,371.82/x
  3. Step 3: Cross multiply
    7,711,306.30x = 10,628,319.99 × 5,128,371.82
  4. Step 4: Simplify right side
    7,711,306.30x = 54,505,976,730,658.69
  5. Step 5: Solve for x
    x = 54,505,976,730,658.69/7,711,306.30
  6. Step 6: Final answer
    x = 7,068,319.51

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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.