Home / 202,262,428.80-303,393,643.20-87,471,172.80

Finding the Fourth Proportional to 202,262,428.80, 303,393,643.20 and 87,471,172.80

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Solution

The fourth proportional to 202,262,428.80, 303,393,643.20 and 87,471,172.80 is: 131,206,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,262,428.80 : 303,393,643.20 = 87,471,172.80 : x
  2. Step 2: Convert to fraction form
    202,262,428.80/303,393,643.20 = 87,471,172.80/x
  3. Step 3: Cross multiply
    202,262,428.80x = 303,393,643.20 × 87,471,172.80
  4. Step 4: Simplify right side
    202,262,428.80x = 26,538,197,790,768,744
  5. Step 5: Solve for x
    x = 26,538,197,790,768,744/202,262,428.80
  6. Step 6: Final answer
    x = 131,206,759.20

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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.