Home / 12,790,872.90-17,651,635.47-6,989,899.14

Finding the Fourth Proportional to 12,790,872.90, 17,651,635.47 and 6,989,899.14

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Solution

The fourth proportional to 12,790,872.90, 17,651,635.47 and 6,989,899.14 is: 9,646,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,872.90 : 17,651,635.47 = 6,989,899.14 : x
  2. Step 2: Convert to fraction form
    12,790,872.90/17,651,635.47 = 6,989,899.14/x
  3. Step 3: Cross multiply
    12,790,872.90x = 17,651,635.47 × 6,989,899.14
  4. Step 4: Simplify right side
    12,790,872.90x = 123,383,151,591,346.48
  5. Step 5: Solve for x
    x = 123,383,151,591,346.48/12,790,872.90
  6. Step 6: Final answer
    x = 9,646,186.98

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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.