Home / 81,129,424.83-111,958,704.68-43,959,676.36

Finding the Fourth Proportional to 81,129,424.83, 111,958,704.68 and 43,959,676.36

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Solution

The fourth proportional to 81,129,424.83, 111,958,704.68 and 43,959,676.36 is: 60,664,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,424.83 : 111,958,704.68 = 43,959,676.36 : x
  2. Step 2: Convert to fraction form
    81,129,424.83/111,958,704.68 = 43,959,676.36/x
  3. Step 3: Cross multiply
    81,129,424.83x = 111,958,704.68 × 43,959,676.36
  4. Step 4: Simplify right side
    81,129,424.83x = 4,921,668,423,417,618
  5. Step 5: Solve for x
    x = 4,921,668,423,417,618/81,129,424.83
  6. Step 6: Final answer
    x = 60,664,406.70

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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.