Home / 138,759,405.88-208,058,429.56-52,504,475.80

Finding the Fourth Proportional to 138,759,405.88, 208,058,429.56 and 52,504,475.80

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Solution

The fourth proportional to 138,759,405.88, 208,058,429.56 and 52,504,475.80 is: 78,726,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,405.88 : 208,058,429.56 = 52,504,475.80 : x
  2. Step 2: Convert to fraction form
    138,759,405.88/208,058,429.56 = 52,504,475.80/x
  3. Step 3: Cross multiply
    138,759,405.88x = 208,058,429.56 × 52,504,475.80
  4. Step 4: Simplify right side
    138,759,405.88x = 10,923,998,779,819,024
  5. Step 5: Solve for x
    x = 10,923,998,779,819,024/138,759,405.88
  6. Step 6: Final answer
    x = 78,726,185.88

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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.