Home / 63,131,615.36-87,112,288.32-38,338,908.80

Finding the Fourth Proportional to 63,131,615.36, 87,112,288.32 and 38,338,908.80

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Solution

The fourth proportional to 63,131,615.36, 87,112,288.32 and 38,338,908.80 is: 52,902,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,131,615.36 : 87,112,288.32 = 38,338,908.80 : x
  2. Step 2: Convert to fraction form
    63,131,615.36/87,112,288.32 = 38,338,908.80/x
  3. Step 3: Cross multiply
    63,131,615.36x = 87,112,288.32 × 38,338,908.80
  4. Step 4: Simplify right side
    63,131,615.36x = 3,339,790,077,259,784.50
  5. Step 5: Solve for x
    x = 3,339,790,077,259,784.50/63,131,615.36
  6. Step 6: Final answer
    x = 52,902,021.57

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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.