Home / 76,926,667.80-115,292,024.10-31,437,067.80

Finding the Fourth Proportional to 76,926,667.80, 115,292,024.10 and 31,437,067.80

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Solution

The fourth proportional to 76,926,667.80, 115,292,024.10 and 31,437,067.80 is: 47,115,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,926,667.80 : 115,292,024.10 = 31,437,067.80 : x
  2. Step 2: Convert to fraction form
    76,926,667.80/115,292,024.10 = 31,437,067.80/x
  3. Step 3: Cross multiply
    76,926,667.80x = 115,292,024.10 × 31,437,067.80
  4. Step 4: Simplify right side
    76,926,667.80x = 3,624,443,178,430,934
  5. Step 5: Solve for x
    x = 3,624,443,178,430,934/76,926,667.80
  6. Step 6: Final answer
    x = 47,115,561.90

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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.