Home / 12,828,864.68-17,697,121.26-7,932,521.60

Finding the Fourth Proportional to 12,828,864.68, 17,697,121.26 and 7,932,521.60

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Solution

The fourth proportional to 12,828,864.68, 17,697,121.26 and 7,932,521.60 is: 10,942,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,864.68 : 17,697,121.26 = 7,932,521.60 : x
  2. Step 2: Convert to fraction form
    12,828,864.68/17,697,121.26 = 7,932,521.60/x
  3. Step 3: Cross multiply
    12,828,864.68x = 17,697,121.26 × 7,932,521.60
  4. Step 4: Simplify right side
    12,828,864.68x = 140,382,796,564,283.62
  5. Step 5: Solve for x
    x = 140,382,796,564,283.62/12,828,864.68
  6. Step 6: Final answer
    x = 10,942,729.55

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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.