Home / 177,187,780.80-265,781,671.20-81,449,668.80

Finding the Fourth Proportional to 177,187,780.80, 265,781,671.20 and 81,449,668.80

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Solution

The fourth proportional to 177,187,780.80, 265,781,671.20 and 81,449,668.80 is: 122,174,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,187,780.80 : 265,781,671.20 = 81,449,668.80 : x
  2. Step 2: Convert to fraction form
    177,187,780.80/265,781,671.20 = 81,449,668.80/x
  3. Step 3: Cross multiply
    177,187,780.80x = 265,781,671.20 × 81,449,668.80
  4. Step 4: Simplify right side
    177,187,780.80x = 21,647,829,092,350,496
  5. Step 5: Solve for x
    x = 21,647,829,092,350,496/177,187,780.80
  6. Step 6: Final answer
    x = 122,174,503.20

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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.