Home / 18,413,490.42-27,621,342.69-5,634,105.78

Finding the Fourth Proportional to 18,413,490.42, 27,621,342.69 and 5,634,105.78

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Solution

The fourth proportional to 18,413,490.42, 27,621,342.69 and 5,634,105.78 is: 8,451,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413,490.42 : 27,621,342.69 = 5,634,105.78 : x
  2. Step 2: Convert to fraction form
    18,413,490.42/27,621,342.69 = 5,634,105.78/x
  3. Step 3: Cross multiply
    18,413,490.42x = 27,621,342.69 × 5,634,105.78
  4. Step 4: Simplify right side
    18,413,490.42x = 155,621,566,501,089.75
  5. Step 5: Solve for x
    x = 155,621,566,501,089.75/18,413,490.42
  6. Step 6: Final answer
    x = 8,451,497.40

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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.