Home / 7,215,212.71-9,956,870.38-3,907,480.10

Finding the Fourth Proportional to 7,215,212.71, 9,956,870.38 and 3,907,480.10

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Solution

The fourth proportional to 7,215,212.71, 9,956,870.38 and 3,907,480.10 is: 5,392,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215,212.71 : 9,956,870.38 = 3,907,480.10 : x
  2. Step 2: Convert to fraction form
    7,215,212.71/9,956,870.38 = 3,907,480.10/x
  3. Step 3: Cross multiply
    7,215,212.71x = 9,956,870.38 × 3,907,480.10
  4. Step 4: Simplify right side
    7,215,212.71x = 38,906,272,868,129.45
  5. Step 5: Solve for x
    x = 38,906,272,868,129.45/7,215,212.71
  6. Step 6: Final answer
    x = 5,392,255.84

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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.