Home / 91,736,139-126,594,234.42-49,918,778.22

Finding the Fourth Proportional to 91,736,139, 126,594,234.42 and 49,918,778.22

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Solution

The fourth proportional to 91,736,139, 126,594,234.42 and 49,918,778.22 is: 68,887,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,736,139 : 126,594,234.42 = 49,918,778.22 : x
  2. Step 2: Convert to fraction form
    91,736,139/126,594,234.42 = 49,918,778.22/x
  3. Step 3: Cross multiply
    91,736,139x = 126,594,234.42 × 49,918,778.22
  4. Step 4: Simplify right side
    91,736,139x = 6,319,429,511,942,670
  5. Step 5: Solve for x
    x = 6,319,429,511,942,670/91,736,139
  6. Step 6: Final answer
    x = 68,887,022.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.