Home / 138,017,071.36-206,947,923.72-45,851,467.60

Finding the Fourth Proportional to 138,017,071.36, 206,947,923.72 and 45,851,467.60

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Solution

The fourth proportional to 138,017,071.36, 206,947,923.72 and 45,851,467.60 is: 68,751,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017,071.36 : 206,947,923.72 = 45,851,467.60 : x
  2. Step 2: Convert to fraction form
    138,017,071.36/206,947,923.72 = 45,851,467.60/x
  3. Step 3: Cross multiply
    138,017,071.36x = 206,947,923.72 × 45,851,467.60
  4. Step 4: Simplify right side
    138,017,071.36x = 9,488,866,019,334,852
  5. Step 5: Solve for x
    x = 9,488,866,019,334,852/138,017,071.36
  6. Step 6: Final answer
    x = 68,751,393.76

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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.