Home / 118,754,326.80-178,131,490.20-42,085,105.20

Finding the Fourth Proportional to 118,754,326.80, 178,131,490.20 and 42,085,105.20

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Solution

The fourth proportional to 118,754,326.80, 178,131,490.20 and 42,085,105.20 is: 63,127,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,754,326.80 : 178,131,490.20 = 42,085,105.20 : x
  2. Step 2: Convert to fraction form
    118,754,326.80/178,131,490.20 = 42,085,105.20/x
  3. Step 3: Cross multiply
    118,754,326.80x = 178,131,490.20 × 42,085,105.20
  4. Step 4: Simplify right side
    118,754,326.80x = 7,496,682,504,499,769
  5. Step 5: Solve for x
    x = 7,496,682,504,499,769/118,754,326.80
  6. Step 6: Final answer
    x = 63,127,657.80

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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.