Home / 76,806,540.11-115,209,926.81-31,368,334.61

Finding the Fourth Proportional to 76,806,540.11, 115,209,926.81 and 31,368,334.61

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Solution

The fourth proportional to 76,806,540.11, 115,209,926.81 and 31,368,334.61 is: 47,052,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,540.11 : 115,209,926.81 = 31,368,334.61 : x
  2. Step 2: Convert to fraction form
    76,806,540.11/115,209,926.81 = 31,368,334.61/x
  3. Step 3: Cross multiply
    76,806,540.11x = 115,209,926.81 × 31,368,334.61
  4. Step 4: Simplify right side
    76,806,540.11x = 3,613,943,533,836,799
  5. Step 5: Solve for x
    x = 3,613,943,533,836,799/76,806,540.11
  6. Step 6: Final answer
    x = 47,052,549.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.