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Finding the Fourth Proportional to 13,990,872.69, 19,306,894.59 and 7,795,599.30

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Solution

The fourth proportional to 13,990,872.69, 19,306,894.59 and 7,795,599.30 is: 10,757,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,872.69 : 19,306,894.59 = 7,795,599.30 : x
  2. Step 2: Convert to fraction form
    13,990,872.69/19,306,894.59 = 7,795,599.30/x
  3. Step 3: Cross multiply
    13,990,872.69x = 19,306,894.59 × 7,795,599.30
  4. Step 4: Simplify right side
    13,990,872.69x = 150,508,813,950,977.78
  5. Step 5: Solve for x
    x = 150,508,813,950,977.78/13,990,872.69
  6. Step 6: Final answer
    x = 10,757,643.02

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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.