Home / 12,187,820-16,819,194.12-6,755,312

Finding the Fourth Proportional to 12,187,820, 16,819,194.12 and 6,755,312

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Solution

The fourth proportional to 12,187,820, 16,819,194.12 and 6,755,312 is: 9,322,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187,820 : 16,819,194.12 = 6,755,312 : x
  2. Step 2: Convert to fraction form
    12,187,820/16,819,194.12 = 6,755,312/x
  3. Step 3: Cross multiply
    12,187,820x = 16,819,194.12 × 6,755,312
  4. Step 4: Simplify right side
    12,187,820x = 113,618,903,869,165.45
  5. Step 5: Solve for x
    x = 113,618,903,869,165.45/12,187,820
  6. Step 6: Final answer
    x = 9,322,331.96

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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.