Home / 84,462,642.10-126,945,905.55-82,950,987.70

Finding the Fourth Proportional to 84,462,642.10, 126,945,905.55 and 82,950,987.70

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Solution

The fourth proportional to 84,462,642.10, 126,945,905.55 and 82,950,987.70 is: 124,673,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,462,642.10 : 126,945,905.55 = 82,950,987.70 : x
  2. Step 2: Convert to fraction form
    84,462,642.10/126,945,905.55 = 82,950,987.70/x
  3. Step 3: Cross multiply
    84,462,642.10x = 126,945,905.55 × 82,950,987.70
  4. Step 4: Simplify right side
    84,462,642.10x = 10,530,288,249,843,412
  5. Step 5: Solve for x
    x = 10,530,288,249,843,412/84,462,642.10
  6. Step 6: Final answer
    x = 124,673,914.86

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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.