Home / 18,421,747.20-27,634,694.40-5,642,150.40

Finding the Fourth Proportional to 18,421,747.20, 27,634,694.40 and 5,642,150.40

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Solution

The fourth proportional to 18,421,747.20, 27,634,694.40 and 5,642,150.40 is: 8,463,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421,747.20 : 27,634,694.40 = 5,642,150.40 : x
  2. Step 2: Convert to fraction form
    18,421,747.20/27,634,694.40 = 5,642,150.40/x
  3. Step 3: Cross multiply
    18,421,747.20x = 27,634,694.40 × 5,642,150.40
  4. Step 4: Simplify right side
    18,421,747.20x = 155,919,102,062,837.75
  5. Step 5: Solve for x
    x = 155,919,102,062,837.75/18,421,747.20
  6. Step 6: Final answer
    x = 8,463,860.70

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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.