Home / 81,134,393.62-111,953,079.70-45,839,320.36

Finding the Fourth Proportional to 81,134,393.62, 111,953,079.70 and 45,839,320.36

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Solution

The fourth proportional to 81,134,393.62, 111,953,079.70 and 45,839,320.36 is: 63,251,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134,393.62 : 111,953,079.70 = 45,839,320.36 : x
  2. Step 2: Convert to fraction form
    81,134,393.62/111,953,079.70 = 45,839,320.36/x
  3. Step 3: Cross multiply
    81,134,393.62x = 111,953,079.70 × 45,839,320.36
  4. Step 4: Simplify right side
    81,134,393.62x = 5,131,853,085,656,913
  5. Step 5: Solve for x
    x = 5,131,853,085,656,913/81,134,393.62
  6. Step 6: Final answer
    x = 63,251,265.67

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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.