Home / 12,178,851.12-16,806,813.12-6,672,421.44

Finding the Fourth Proportional to 12,178,851.12, 16,806,813.12 and 6,672,421.44

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Solution

The fourth proportional to 12,178,851.12, 16,806,813.12 and 6,672,421.44 is: 9,207,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,851.12 : 16,806,813.12 = 6,672,421.44 : x
  2. Step 2: Convert to fraction form
    12,178,851.12/16,806,813.12 = 6,672,421.44/x
  3. Step 3: Cross multiply
    12,178,851.12x = 16,806,813.12 × 6,672,421.44
  4. Step 4: Simplify right side
    12,178,851.12x = 112,142,140,199,961.31
  5. Step 5: Solve for x
    x = 112,142,140,199,961.31/12,178,851.12
  6. Step 6: Final answer
    x = 9,207,940.81

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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.