Home / 9,528,979.62-13,149,981.78-5,178,055.56

Finding the Fourth Proportional to 9,528,979.62, 13,149,981.78 and 5,178,055.56

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Solution

The fourth proportional to 9,528,979.62, 13,149,981.78 and 5,178,055.56 is: 7,145,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,528,979.62 : 13,149,981.78 = 5,178,055.56 : x
  2. Step 2: Convert to fraction form
    9,528,979.62/13,149,981.78 = 5,178,055.56/x
  3. Step 3: Cross multiply
    9,528,979.62x = 13,149,981.78 × 5,178,055.56
  4. Step 4: Simplify right side
    9,528,979.62x = 68,091,336,269,827.69
  5. Step 5: Solve for x
    x = 68,091,336,269,827.69/9,528,979.62
  6. Step 6: Final answer
    x = 7,145,711.19

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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.