Home / 181,445,821.80-272,168,732.70-66,434,116.20

Finding the Fourth Proportional to 181,445,821.80, 272,168,732.70 and 66,434,116.20

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Solution

The fourth proportional to 181,445,821.80, 272,168,732.70 and 66,434,116.20 is: 99,651,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,445,821.80 : 272,168,732.70 = 66,434,116.20 : x
  2. Step 2: Convert to fraction form
    181,445,821.80/272,168,732.70 = 66,434,116.20/x
  3. Step 3: Cross multiply
    181,445,821.80x = 272,168,732.70 × 66,434,116.20
  4. Step 4: Simplify right side
    181,445,821.80x = 18,081,289,214,198,540
  5. Step 5: Solve for x
    x = 18,081,289,214,198,540/181,445,821.80
  6. Step 6: Final answer
    x = 99,651,174.30

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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.