Home / 12,412,981.26-17,137,915.71-8,004,678.15

Finding the Fourth Proportional to 12,412,981.26, 17,137,915.71 and 8,004,678.15

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Solution

The fourth proportional to 12,412,981.26, 17,137,915.71 and 8,004,678.15 is: 11,051,615.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412,981.26 : 17,137,915.71 = 8,004,678.15 : x
  2. Step 2: Convert to fraction form
    12,412,981.26/17,137,915.71 = 8,004,678.15/x
  3. Step 3: Cross multiply
    12,412,981.26x = 17,137,915.71 × 8,004,678.15
  4. Step 4: Simplify right side
    12,412,981.26x = 137,183,499,420,378.75
  5. Step 5: Solve for x
    x = 137,183,499,420,378.75/12,412,981.26
  6. Step 6: Final answer
    x = 11,051,615.77

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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.