Home / 72,768,164.40-109,152,246.60-71,333,273.70

Finding the Fourth Proportional to 72,768,164.40, 109,152,246.60 and 71,333,273.70

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Solution

The fourth proportional to 72,768,164.40, 109,152,246.60 and 71,333,273.70 is: 106,999,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,164.40 : 109,152,246.60 = 71,333,273.70 : x
  2. Step 2: Convert to fraction form
    72,768,164.40/109,152,246.60 = 71,333,273.70/x
  3. Step 3: Cross multiply
    72,768,164.40x = 109,152,246.60 × 71,333,273.70
  4. Step 4: Simplify right side
    72,768,164.40x = 7,786,187,081,687,694
  5. Step 5: Solve for x
    x = 7,786,187,081,687,694/72,768,164.40
  6. Step 6: Final answer
    x = 106,999,910.55

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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.