Home / 12,145,144.46-16,760,750.72-6,638,889.60

Finding the Fourth Proportional to 12,145,144.46, 16,760,750.72 and 6,638,889.60

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Solution

The fourth proportional to 12,145,144.46, 16,760,750.72 and 6,638,889.60 is: 9,161,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,144.46 : 16,760,750.72 = 6,638,889.60 : x
  2. Step 2: Convert to fraction form
    12,145,144.46/16,760,750.72 = 6,638,889.60/x
  3. Step 3: Cross multiply
    12,145,144.46x = 16,760,750.72 × 6,638,889.60
  4. Step 4: Simplify right side
    12,145,144.46x = 111,272,773,610,006.06
  5. Step 5: Solve for x
    x = 111,272,773,610,006.06/12,145,144.46
  6. Step 6: Final answer
    x = 9,161,914.38

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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.