Home / 7,187,081.28-9,918,205.44-3,923,970.60

Finding the Fourth Proportional to 7,187,081.28, 9,918,205.44 and 3,923,970.60

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Solution

The fourth proportional to 7,187,081.28, 9,918,205.44 and 3,923,970.60 is: 5,415,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187,081.28 : 9,918,205.44 = 3,923,970.60 : x
  2. Step 2: Convert to fraction form
    7,187,081.28/9,918,205.44 = 3,923,970.60/x
  3. Step 3: Cross multiply
    7,187,081.28x = 9,918,205.44 × 3,923,970.60
  4. Step 4: Simplify right side
    7,187,081.28x = 38,918,746,551,320.06
  5. Step 5: Solve for x
    x = 38,918,746,551,320.06/7,187,081.28
  6. Step 6: Final answer
    x = 5,415,097.59

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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.