Home / 9,155,512.92-12,628,860.80-5,431,707.54

Finding the Fourth Proportional to 9,155,512.92, 12,628,860.80 and 5,431,707.54

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Solution

The fourth proportional to 9,155,512.92, 12,628,860.80 and 5,431,707.54 is: 7,492,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155,512.92 : 12,628,860.80 = 5,431,707.54 : x
  2. Step 2: Convert to fraction form
    9,155,512.92/12,628,860.80 = 5,431,707.54/x
  3. Step 3: Cross multiply
    9,155,512.92x = 12,628,860.80 × 5,431,707.54
  4. Step 4: Simplify right side
    9,155,512.92x = 68,596,278,428,970.44
  5. Step 5: Solve for x
    x = 68,596,278,428,970.44/9,155,512.92
  6. Step 6: Final answer
    x = 7,492,346.85

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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.