Home / 71,126,342.78-106,704,743.31-21,275,079.39

Finding the Fourth Proportional to 71,126,342.78, 106,704,743.31 and 21,275,079.39

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Solution

The fourth proportional to 71,126,342.78, 106,704,743.31 and 21,275,079.39 is: 31,917,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126,342.78 : 106,704,743.31 = 21,275,079.39 : x
  2. Step 2: Convert to fraction form
    71,126,342.78/106,704,743.31 = 21,275,079.39/x
  3. Step 3: Cross multiply
    71,126,342.78x = 106,704,743.31 × 21,275,079.39
  4. Step 4: Simplify right side
    71,126,342.78x = 2,270,151,885,209,821.50
  5. Step 5: Solve for x
    x = 2,270,151,885,209,821.50/71,126,342.78
  6. Step 6: Final answer
    x = 31,917,174.38

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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.