Home / 12,412,665.56-18,618,811.49-5,584,416.81

Finding the Fourth Proportional to 12,412,665.56, 18,618,811.49 and 5,584,416.81

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Solution

The fourth proportional to 12,412,665.56, 18,618,811.49 and 5,584,416.81 is: 8,376,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412,665.56 : 18,618,811.49 = 5,584,416.81 : x
  2. Step 2: Convert to fraction form
    12,412,665.56/18,618,811.49 = 5,584,416.81/x
  3. Step 3: Cross multiply
    12,412,665.56x = 18,618,811.49 × 5,584,416.81
  4. Step 4: Simplify right side
    12,412,665.56x = 103,975,203,839,055.05
  5. Step 5: Solve for x
    x = 103,975,203,839,055.05/12,412,665.56
  6. Step 6: Final answer
    x = 8,376,541.15

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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.