Home / 21,002,446.80-31,503,670.20-19,207,357.20

Finding the Fourth Proportional to 21,002,446.80, 31,503,670.20 and 19,207,357.20

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Solution

The fourth proportional to 21,002,446.80, 31,503,670.20 and 19,207,357.20 is: 28,811,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,446.80 : 31,503,670.20 = 19,207,357.20 : x
  2. Step 2: Convert to fraction form
    21,002,446.80/31,503,670.20 = 19,207,357.20/x
  3. Step 3: Cross multiply
    21,002,446.80x = 31,503,670.20 × 19,207,357.20
  4. Step 4: Simplify right side
    21,002,446.80x = 605,102,246,642,395.38
  5. Step 5: Solve for x
    x = 605,102,246,642,395.38/21,002,446.80
  6. Step 6: Final answer
    x = 28,811,035.80

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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.