Home / 126,120,302.33-189,089,659.76-77,497,697.66

Finding the Fourth Proportional to 126,120,302.33, 189,089,659.76 and 77,497,697.66

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Solution

The fourth proportional to 126,120,302.33, 189,089,659.76 and 77,497,697.66 is: 116,190,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120,302.33 : 189,089,659.76 = 77,497,697.66 : x
  2. Step 2: Convert to fraction form
    126,120,302.33/189,089,659.76 = 77,497,697.66/x
  3. Step 3: Cross multiply
    126,120,302.33x = 189,089,659.76 × 77,497,697.66
  4. Step 4: Simplify right side
    126,120,302.33x = 14,654,013,281,379,812
  5. Step 5: Solve for x
    x = 14,654,013,281,379,812/126,120,302.33
  6. Step 6: Final answer
    x = 116,190,756.06

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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.