Home / 12,178,853.12-16,806,815.88-6,672,423.44

Finding the Fourth Proportional to 12,178,853.12, 16,806,815.88 and 6,672,423.44

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Solution

The fourth proportional to 12,178,853.12, 16,806,815.88 and 6,672,423.44 is: 9,207,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,853.12 : 16,806,815.88 = 6,672,423.44 : x
  2. Step 2: Convert to fraction form
    12,178,853.12/16,806,815.88 = 6,672,423.44/x
  3. Step 3: Cross multiply
    12,178,853.12x = 16,806,815.88 × 6,672,423.44
  4. Step 4: Simplify right side
    12,178,853.12x = 112,142,192,229,476.23
  5. Step 5: Solve for x
    x = 112,142,192,229,476.23/12,178,853.12
  6. Step 6: Final answer
    x = 9,207,943.57

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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.