Home / 193,632,022.80-290,448,034.20-78,620,317.20

Finding the Fourth Proportional to 193,632,022.80, 290,448,034.20 and 78,620,317.20

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Solution

The fourth proportional to 193,632,022.80, 290,448,034.20 and 78,620,317.20 is: 117,930,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,632,022.80 : 290,448,034.20 = 78,620,317.20 : x
  2. Step 2: Convert to fraction form
    193,632,022.80/290,448,034.20 = 78,620,317.20/x
  3. Step 3: Cross multiply
    193,632,022.80x = 290,448,034.20 × 78,620,317.20
  4. Step 4: Simplify right side
    193,632,022.80x = 22,835,116,578,920,448
  5. Step 5: Solve for x
    x = 22,835,116,578,920,448/193,632,022.80
  6. Step 6: Final answer
    x = 117,930,475.80

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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.