Home / 18,521,065.74-25,554,454.11-10,682,974.38

Finding the Fourth Proportional to 18,521,065.74, 25,554,454.11 and 10,682,974.38

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Solution

The fourth proportional to 18,521,065.74, 25,554,454.11 and 10,682,974.38 is: 14,739,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521,065.74 : 25,554,454.11 = 10,682,974.38 : x
  2. Step 2: Convert to fraction form
    18,521,065.74/25,554,454.11 = 10,682,974.38/x
  3. Step 3: Cross multiply
    18,521,065.74x = 25,554,454.11 × 10,682,974.38
  4. Step 4: Simplify right side
    18,521,065.74x = 272,997,578,552,015.72
  5. Step 5: Solve for x
    x = 272,997,578,552,015.72/18,521,065.74
  6. Step 6: Final answer
    x = 14,739,841.78

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1.5x scale

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.