Home / 74,148,628.60-111,222,942.90-71,125,319.80

Finding the Fourth Proportional to 74,148,628.60, 111,222,942.90 and 71,125,319.80

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Solution

The fourth proportional to 74,148,628.60, 111,222,942.90 and 71,125,319.80 is: 106,687,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148,628.60 : 111,222,942.90 = 71,125,319.80 : x
  2. Step 2: Convert to fraction form
    74,148,628.60/111,222,942.90 = 71,125,319.80/x
  3. Step 3: Cross multiply
    74,148,628.60x = 111,222,942.90 × 71,125,319.80
  4. Step 4: Simplify right side
    74,148,628.60x = 7,910,767,382,859,640
  5. Step 5: Solve for x
    x = 7,910,767,382,859,640/74,148,628.60
  6. Step 6: Final answer
    x = 106,687,979.70

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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.