Home / 72,770,606.70-109,155,910.05-71,814,012.90

Finding the Fourth Proportional to 72,770,606.70, 109,155,910.05 and 71,814,012.90

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Solution

The fourth proportional to 72,770,606.70, 109,155,910.05 and 71,814,012.90 is: 107,721,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770,606.70 : 109,155,910.05 = 71,814,012.90 : x
  2. Step 2: Convert to fraction form
    72,770,606.70/109,155,910.05 = 71,814,012.90/x
  3. Step 3: Cross multiply
    72,770,606.70x = 109,155,910.05 × 71,814,012.90
  4. Step 4: Simplify right side
    72,770,606.70x = 7,838,923,932,441,940
  5. Step 5: Solve for x
    x = 7,838,923,932,441,940/72,770,606.70
  6. Step 6: Final answer
    x = 107,721,019.35

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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.