Home / 51,990,412.82-71,749,011.87-28,785,540.11

Finding the Fourth Proportional to 51,990,412.82, 71,749,011.87 and 28,785,540.11

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Solution

The fourth proportional to 51,990,412.82, 71,749,011.87 and 28,785,540.11 is: 39,725,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,990,412.82 : 71,749,011.87 = 28,785,540.11 : x
  2. Step 2: Convert to fraction form
    51,990,412.82/71,749,011.87 = 28,785,540.11/x
  3. Step 3: Cross multiply
    51,990,412.82x = 71,749,011.87 × 28,785,540.11
  4. Step 4: Simplify right side
    51,990,412.82x = 2,065,334,058,678,006.25
  5. Step 5: Solve for x
    x = 2,065,334,058,678,006.25/51,990,412.82
  6. Step 6: Final answer
    x = 39,725,286.78

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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.