Home / 166,485,910.20-249,728,865.30-163,616,128.80

Finding the Fourth Proportional to 166,485,910.20, 249,728,865.30 and 163,616,128.80

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Solution

The fourth proportional to 166,485,910.20, 249,728,865.30 and 163,616,128.80 is: 245,424,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,485,910.20 : 249,728,865.30 = 163,616,128.80 : x
  2. Step 2: Convert to fraction form
    166,485,910.20/249,728,865.30 = 163,616,128.80/x
  3. Step 3: Cross multiply
    166,485,910.20x = 249,728,865.30 × 163,616,128.80
  4. Step 4: Simplify right side
    166,485,910.20x = 40,859,670,190,002,656
  5. Step 5: Solve for x
    x = 40,859,670,190,002,656/166,485,910.20
  6. Step 6: Final answer
    x = 245,424,193.20

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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.