Home / 20,658,277.17-30,991,198.46-8,521,119.45

Finding the Fourth Proportional to 20,658,277.17, 30,991,198.46 and 8,521,119.45

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Solution

The fourth proportional to 20,658,277.17, 30,991,198.46 and 8,521,119.45 is: 12,783,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658,277.17 : 30,991,198.46 = 8,521,119.45 : x
  2. Step 2: Convert to fraction form
    20,658,277.17/30,991,198.46 = 8,521,119.45/x
  3. Step 3: Cross multiply
    20,658,277.17x = 30,991,198.46 × 8,521,119.45
  4. Step 4: Simplify right side
    20,658,277.17x = 264,079,703,933,710.41
  5. Step 5: Solve for x
    x = 264,079,703,933,710.41/20,658,277.17
  6. Step 6: Final answer
    x = 12,783,239.46

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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.