Home / 72,609,044.80-100,197,936.79-39,568,619.72

Finding the Fourth Proportional to 72,609,044.80, 100,197,936.79 and 39,568,619.72

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Solution

The fourth proportional to 72,609,044.80, 100,197,936.79 and 39,568,619.72 is: 54,603,308.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,044.80 : 100,197,936.79 = 39,568,619.72 : x
  2. Step 2: Convert to fraction form
    72,609,044.80/100,197,936.79 = 39,568,619.72/x
  3. Step 3: Cross multiply
    72,609,044.80x = 100,197,936.79 × 39,568,619.72
  4. Step 4: Simplify right side
    72,609,044.80x = 3,964,694,057,130,276
  5. Step 5: Solve for x
    x = 3,964,694,057,130,276/72,609,044.80
  6. Step 6: Final answer
    x = 54,603,308.28

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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.