Home / 165,469,123.20-248,203,684.80-83,839,785.60

Finding the Fourth Proportional to 165,469,123.20, 248,203,684.80 and 83,839,785.60

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Solution

The fourth proportional to 165,469,123.20, 248,203,684.80 and 83,839,785.60 is: 125,759,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,469,123.20 : 248,203,684.80 = 83,839,785.60 : x
  2. Step 2: Convert to fraction form
    165,469,123.20/248,203,684.80 = 83,839,785.60/x
  3. Step 3: Cross multiply
    165,469,123.20x = 248,203,684.80 × 83,839,785.60
  4. Step 4: Simplify right side
    165,469,123.20x = 20,809,343,718,761,980
  5. Step 5: Solve for x
    x = 20,809,343,718,761,980/165,469,123.20
  6. Step 6: Final answer
    x = 125,759,678.40

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1.5x scale

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.