Home / 12,105,895.70-16,705,531.94-6,878,213.21

Finding the Fourth Proportional to 12,105,895.70, 16,705,531.94 and 6,878,213.21

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Solution

The fourth proportional to 12,105,895.70, 16,705,531.94 and 6,878,213.21 is: 9,491,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105,895.70 : 16,705,531.94 = 6,878,213.21 : x
  2. Step 2: Convert to fraction form
    12,105,895.70/16,705,531.94 = 6,878,213.21/x
  3. Step 3: Cross multiply
    12,105,895.70x = 16,705,531.94 × 6,878,213.21
  4. Step 4: Simplify right side
    12,105,895.70x = 114,904,210,477,157.70
  5. Step 5: Solve for x
    x = 114,904,210,477,157.70/12,105,895.70
  6. Step 6: Final answer
    x = 9,491,590.98

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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.