Home / 76,806,541.38-115,209,928.72-31,368,335.88

Finding the Fourth Proportional to 76,806,541.38, 115,209,928.72 and 31,368,335.88

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Solution

The fourth proportional to 76,806,541.38, 115,209,928.72 and 31,368,335.88 is: 47,052,551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,541.38 : 115,209,928.72 = 31,368,335.88 : x
  2. Step 2: Convert to fraction form
    76,806,541.38/115,209,928.72 = 31,368,335.88/x
  3. Step 3: Cross multiply
    76,806,541.38x = 115,209,928.72 × 31,368,335.88
  4. Step 4: Simplify right side
    76,806,541.38x = 3,613,943,740,799,818.50
  5. Step 5: Solve for x
    x = 3,613,943,740,799,818.50/76,806,541.38
  6. Step 6: Final answer
    x = 47,052,551.46

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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.