Home / 76,806,540.86-115,209,927.92-31,368,335.36

Finding the Fourth Proportional to 76,806,540.86, 115,209,927.92 and 31,368,335.36

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Solution

The fourth proportional to 76,806,540.86, 115,209,927.92 and 31,368,335.36 is: 47,052,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,540.86 : 115,209,927.92 = 31,368,335.36 : x
  2. Step 2: Convert to fraction form
    76,806,540.86/115,209,927.92 = 31,368,335.36/x
  3. Step 3: Cross multiply
    76,806,540.86x = 115,209,927.92 × 31,368,335.36
  4. Step 4: Simplify right side
    76,806,540.86x = 3,613,943,655,298,358.50
  5. Step 5: Solve for x
    x = 3,613,943,655,298,358.50/76,806,540.86
  6. Step 6: Final answer
    x = 47,052,550.67

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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.