Home / 21,987,019.49-30,342,122.64-12,197,463.91

Finding the Fourth Proportional to 21,987,019.49, 30,342,122.64 and 12,197,463.91

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Solution

The fourth proportional to 21,987,019.49, 30,342,122.64 and 12,197,463.91 is: 16,832,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,019.49 : 30,342,122.64 = 12,197,463.91 : x
  2. Step 2: Convert to fraction form
    21,987,019.49/30,342,122.64 = 12,197,463.91/x
  3. Step 3: Cross multiply
    21,987,019.49x = 30,342,122.64 × 12,197,463.91
  4. Step 4: Simplify right side
    21,987,019.49x = 370,096,945,778,338.62
  5. Step 5: Solve for x
    x = 370,096,945,778,338.62/21,987,019.49
  6. Step 6: Final answer
    x = 16,832,520.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.