Home / 12,310,861.55-16,989,868.05-6,804,118.07

Finding the Fourth Proportional to 12,310,861.55, 16,989,868.05 and 6,804,118.07

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Solution

The fourth proportional to 12,310,861.55, 16,989,868.05 and 6,804,118.07 is: 9,390,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,861.55 : 16,989,868.05 = 6,804,118.07 : x
  2. Step 2: Convert to fraction form
    12,310,861.55/16,989,868.05 = 6,804,118.07/x
  3. Step 3: Cross multiply
    12,310,861.55x = 16,989,868.05 × 6,804,118.07
  4. Step 4: Simplify right side
    12,310,861.55x = 115,601,068,205,920.67
  5. Step 5: Solve for x
    x = 115,601,068,205,920.67/12,310,861.55
  6. Step 6: Final answer
    x = 9,390,168.81

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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.