Home / 76,806,455.70-115,209,800.44-31,368,250.20

Finding the Fourth Proportional to 76,806,455.70, 115,209,800.44 and 31,368,250.20

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Solution

The fourth proportional to 76,806,455.70, 115,209,800.44 and 31,368,250.20 is: 47,052,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,455.70 : 115,209,800.44 = 31,368,250.20 : x
  2. Step 2: Convert to fraction form
    76,806,455.70/115,209,800.44 = 31,368,250.20/x
  3. Step 3: Cross multiply
    76,806,455.70x = 115,209,800.44 × 31,368,250.20
  4. Step 4: Simplify right side
    76,806,455.70x = 3,613,929,845,693,990
  5. Step 5: Solve for x
    x = 3,613,929,845,693,990/76,806,455.70
  6. Step 6: Final answer
    x = 47,052,423.04

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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.