Home / 76,791,693.60-115,187,540.40-56,384,359.20

Finding the Fourth Proportional to 76,791,693.60, 115,187,540.40 and 56,384,359.20

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Solution

The fourth proportional to 76,791,693.60, 115,187,540.40 and 56,384,359.20 is: 84,576,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,791,693.60 : 115,187,540.40 = 56,384,359.20 : x
  2. Step 2: Convert to fraction form
    76,791,693.60/115,187,540.40 = 56,384,359.20/x
  3. Step 3: Cross multiply
    76,791,693.60x = 115,187,540.40 × 56,384,359.20
  4. Step 4: Simplify right side
    76,791,693.60x = 6,494,775,653,278,112
  5. Step 5: Solve for x
    x = 6,494,775,653,278,112/76,791,693.60
  6. Step 6: Final answer
    x = 84,576,538.80

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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.