Home / 100,504,498-138,712,661.56-83,732,640.42

Finding the Fourth Proportional to 100,504,498, 138,712,661.56 and 83,732,640.42

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Solution

The fourth proportional to 100,504,498, 138,712,661.56 and 83,732,640.42 is: 115,564,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,504,498 : 138,712,661.56 = 83,732,640.42 : x
  2. Step 2: Convert to fraction form
    100,504,498/138,712,661.56 = 83,732,640.42/x
  3. Step 3: Cross multiply
    100,504,498x = 138,712,661.56 × 83,732,640.42
  4. Step 4: Simplify right side
    100,504,498x = 11,614,777,412,104,636
  5. Step 5: Solve for x
    x = 11,614,777,412,104,636/100,504,498
  6. Step 6: Final answer
    x = 115,564,752.26

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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.