Home / 91,131,891.96-125,762,010.89-49,878,784.34

Finding the Fourth Proportional to 91,131,891.96, 125,762,010.89 and 49,878,784.34

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Solution

The fourth proportional to 91,131,891.96, 125,762,010.89 and 49,878,784.34 is: 68,832,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131,891.96 : 125,762,010.89 = 49,878,784.34 : x
  2. Step 2: Convert to fraction form
    91,131,891.96/125,762,010.89 = 49,878,784.34/x
  3. Step 3: Cross multiply
    91,131,891.96x = 125,762,010.89 × 49,878,784.34
  4. Step 4: Simplify right side
    91,131,891.96x = 6,272,856,219,347,042
  5. Step 5: Solve for x
    x = 6,272,856,219,347,042/91,131,891.96
  6. Step 6: Final answer
    x = 68,832,722.38

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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.