Home / 121,303,854.91-181,770,629.72-72,022,663.60

Finding the Fourth Proportional to 121,303,854.91, 181,770,629.72 and 72,022,663.60

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Solution

The fourth proportional to 121,303,854.91, 181,770,629.72 and 72,022,663.60 is: 107,924,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,303,854.91 : 181,770,629.72 = 72,022,663.60 : x
  2. Step 2: Convert to fraction form
    121,303,854.91/181,770,629.72 = 72,022,663.60/x
  3. Step 3: Cross multiply
    121,303,854.91x = 181,770,629.72 × 72,022,663.60
  4. Step 4: Simplify right side
    121,303,854.91x = 13,091,604,915,414,756
  5. Step 5: Solve for x
    x = 13,091,604,915,414,756/121,303,854.91
  6. Step 6: Final answer
    x = 107,924,063.30

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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.