Home / 91,042,878.44-125,642,161.65-49,789,770.81

Finding the Fourth Proportional to 91,042,878.44, 125,642,161.65 and 49,789,770.81

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Solution

The fourth proportional to 91,042,878.44, 125,642,161.65 and 49,789,770.81 is: 68,711,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,042,878.44 : 125,642,161.65 = 49,789,770.81 : x
  2. Step 2: Convert to fraction form
    91,042,878.44/125,642,161.65 = 49,789,770.81/x
  3. Step 3: Cross multiply
    91,042,878.44x = 125,642,161.65 × 49,789,770.81
  4. Step 4: Simplify right side
    91,042,878.44x = 6,255,694,432,626,472
  5. Step 5: Solve for x
    x = 6,255,694,432,626,472/91,042,878.44
  6. Step 6: Final answer
    x = 68,711,518.57

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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.