Home / 76,957,689.12-115,438,005.60-25,142,434.56

Finding the Fourth Proportional to 76,957,689.12, 115,438,005.60 and 25,142,434.56

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Solution

The fourth proportional to 76,957,689.12, 115,438,005.60 and 25,142,434.56 is: 37,714,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,957,689.12 : 115,438,005.60 = 25,142,434.56 : x
  2. Step 2: Convert to fraction form
    76,957,689.12/115,438,005.60 = 25,142,434.56/x
  3. Step 3: Cross multiply
    76,957,689.12x = 115,438,005.60 × 25,142,434.56
  4. Step 4: Simplify right side
    76,957,689.12x = 2,902,392,501,534,913
  5. Step 5: Solve for x
    x = 2,902,392,501,534,913/76,957,689.12
  6. Step 6: Final answer
    x = 37,714,132.72

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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.