Home / 87,048,141.21-120,126,255.26-47,889,824.13

Finding the Fourth Proportional to 87,048,141.21, 120,126,255.26 and 47,889,824.13

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Solution

The fourth proportional to 87,048,141.21, 120,126,255.26 and 47,889,824.13 is: 66,087,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,048,141.21 : 120,126,255.26 = 47,889,824.13 : x
  2. Step 2: Convert to fraction form
    87,048,141.21/120,126,255.26 = 47,889,824.13/x
  3. Step 3: Cross multiply
    87,048,141.21x = 120,126,255.26 × 47,889,824.13
  4. Step 4: Simplify right side
    87,048,141.21x = 5,752,825,237,557,438
  5. Step 5: Solve for x
    x = 5,752,825,237,557,438/87,048,141.21
  6. Step 6: Final answer
    x = 66,087,858.48

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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.