Home / 7,728,417.19-11,648,176.83-6,661,803.72

Finding the Fourth Proportional to 7,728,417.19, 11,648,176.83 and 6,661,803.72

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Solution

The fourth proportional to 7,728,417.19, 11,648,176.83 and 6,661,803.72 is: 10,040,589.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,417.19 : 11,648,176.83 = 6,661,803.72 : x
  2. Step 2: Convert to fraction form
    7,728,417.19/11,648,176.83 = 6,661,803.72/x
  3. Step 3: Cross multiply
    7,728,417.19x = 11,648,176.83 × 6,661,803.72
  4. Step 4: Simplify right side
    7,728,417.19x = 77,597,867,737,311.81
  5. Step 5: Solve for x
    x = 77,597,867,737,311.81/7,728,417.19
  6. Step 6: Final answer
    x = 10,040,589.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.