Home / 76,806,530.61-115,209,912.55-31,368,325.11

Finding the Fourth Proportional to 76,806,530.61, 115,209,912.55 and 31,368,325.11

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Solution

The fourth proportional to 76,806,530.61, 115,209,912.55 and 31,368,325.11 is: 47,052,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,530.61 : 115,209,912.55 = 31,368,325.11 : x
  2. Step 2: Convert to fraction form
    76,806,530.61/115,209,912.55 = 31,368,325.11/x
  3. Step 3: Cross multiply
    76,806,530.61x = 115,209,912.55 × 31,368,325.11
  4. Step 4: Simplify right side
    76,806,530.61x = 3,613,941,992,763,069
  5. Step 5: Solve for x
    x = 3,613,941,992,763,069/76,806,530.61
  6. Step 6: Final answer
    x = 47,052,535.30

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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.