Home / 12,013,642.50-16,578,843.12-6,643,094.64

Finding the Fourth Proportional to 12,013,642.50, 16,578,843.12 and 6,643,094.64

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Solution

The fourth proportional to 12,013,642.50, 16,578,843.12 and 6,643,094.64 is: 9,167,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013,642.50 : 16,578,843.12 = 6,643,094.64 : x
  2. Step 2: Convert to fraction form
    12,013,642.50/16,578,843.12 = 6,643,094.64/x
  3. Step 3: Cross multiply
    12,013,642.50x = 16,578,843.12 × 6,643,094.64
  4. Step 4: Simplify right side
    12,013,642.50x = 110,134,823,867,872.86
  5. Step 5: Solve for x
    x = 110,134,823,867,872.86/12,013,642.50
  6. Step 6: Final answer
    x = 9,167,479.71

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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.