Home / 12,880,329.28-19,322,406.86-4,242,834.29

Finding the Fourth Proportional to 12,880,329.28, 19,322,406.86 and 4,242,834.29

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Solution

The fourth proportional to 12,880,329.28, 19,322,406.86 and 4,242,834.29 is: 6,364,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,329.28 : 19,322,406.86 = 4,242,834.29 : x
  2. Step 2: Convert to fraction form
    12,880,329.28/19,322,406.86 = 4,242,834.29/x
  3. Step 3: Cross multiply
    12,880,329.28x = 19,322,406.86 × 4,242,834.29
  4. Step 4: Simplify right side
    12,880,329.28x = 81,981,770,273,113.03
  5. Step 5: Solve for x
    x = 81,981,770,273,113.03/12,880,329.28
  6. Step 6: Final answer
    x = 6,364,881.56

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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.