Home / 111,463,378.70-167,128,841.03-42,381,233.91

Finding the Fourth Proportional to 111,463,378.70, 167,128,841.03 and 42,381,233.91

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Solution

The fourth proportional to 111,463,378.70, 167,128,841.03 and 42,381,233.91 is: 63,546,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,463,378.70 : 167,128,841.03 = 42,381,233.91 : x
  2. Step 2: Convert to fraction form
    111,463,378.70/167,128,841.03 = 42,381,233.91/x
  3. Step 3: Cross multiply
    111,463,378.70x = 167,128,841.03 × 42,381,233.91
  4. Step 4: Simplify right side
    111,463,378.70x = 7,083,126,504,587,729
  5. Step 5: Solve for x
    x = 7,083,126,504,587,729/111,463,378.70
  6. Step 6: Final answer
    x = 63,546,669.66

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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.