Home / 139,230,355.65-192,126,644.12-80,496,806.48

Finding the Fourth Proportional to 139,230,355.65, 192,126,644.12 and 80,496,806.48

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Solution

The fourth proportional to 139,230,355.65, 192,126,644.12 and 80,496,806.48 is: 111,079,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,230,355.65 : 192,126,644.12 = 80,496,806.48 : x
  2. Step 2: Convert to fraction form
    139,230,355.65/192,126,644.12 = 80,496,806.48/x
  3. Step 3: Cross multiply
    139,230,355.65x = 192,126,644.12 × 80,496,806.48
  4. Step 4: Simplify right side
    139,230,355.65x = 15,465,581,292,364,112
  5. Step 5: Solve for x
    x = 15,465,581,292,364,112/139,230,355.65
  6. Step 6: Final answer
    x = 111,079,090.62

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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.