Home / 138,759,410.88-208,058,437.02-52,504,480.80

Finding the Fourth Proportional to 138,759,410.88, 208,058,437.02 and 52,504,480.80

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Solution

The fourth proportional to 138,759,410.88, 208,058,437.02 and 52,504,480.80 is: 78,726,193.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,410.88 : 208,058,437.02 = 52,504,480.80 : x
  2. Step 2: Convert to fraction form
    138,759,410.88/208,058,437.02 = 52,504,480.80/x
  3. Step 3: Cross multiply
    138,759,410.88x = 208,058,437.02 × 52,504,480.80
  4. Step 4: Simplify right side
    138,759,410.88x = 10,924,000,211,794,600
  5. Step 5: Solve for x
    x = 10,924,000,211,794,600/138,759,410.88
  6. Step 6: Final answer
    x = 78,726,193.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.