Home / 172,339,589.20-258,509,383.80-117,920,030.80

Finding the Fourth Proportional to 172,339,589.20, 258,509,383.80 and 117,920,030.80

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Solution

The fourth proportional to 172,339,589.20, 258,509,383.80 and 117,920,030.80 is: 176,880,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,339,589.20 : 258,509,383.80 = 117,920,030.80 : x
  2. Step 2: Convert to fraction form
    172,339,589.20/258,509,383.80 = 117,920,030.80/x
  3. Step 3: Cross multiply
    172,339,589.20x = 258,509,383.80 × 117,920,030.80
  4. Step 4: Simplify right side
    172,339,589.20x = 30,483,434,499,785,020
  5. Step 5: Solve for x
    x = 30,483,434,499,785,020/172,339,589.20
  6. Step 6: Final answer
    x = 176,880,046.20

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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.