Home / 72,168,536.80-108,252,805.20-65,002,175.20

Finding the Fourth Proportional to 72,168,536.80, 108,252,805.20 and 65,002,175.20

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Solution

The fourth proportional to 72,168,536.80, 108,252,805.20 and 65,002,175.20 is: 97,503,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,168,536.80 : 108,252,805.20 = 65,002,175.20 : x
  2. Step 2: Convert to fraction form
    72,168,536.80/108,252,805.20 = 65,002,175.20/x
  3. Step 3: Cross multiply
    72,168,536.80x = 108,252,805.20 × 65,002,175.20
  4. Step 4: Simplify right side
    72,168,536.80x = 7,036,667,809,501,872
  5. Step 5: Solve for x
    x = 7,036,667,809,501,872/72,168,536.80
  6. Step 6: Final answer
    x = 97,503,262.80

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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.