Home / 13,187,107.70-19,780,661.55-8,085,274.10

Finding the Fourth Proportional to 13,187,107.70, 19,780,661.55 and 8,085,274.10

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Solution

The fourth proportional to 13,187,107.70, 19,780,661.55 and 8,085,274.10 is: 12,127,911.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,107.70 : 19,780,661.55 = 8,085,274.10 : x
  2. Step 2: Convert to fraction form
    13,187,107.70/19,780,661.55 = 8,085,274.10/x
  3. Step 3: Cross multiply
    13,187,107.70x = 19,780,661.55 × 8,085,274.10
  4. Step 4: Simplify right side
    13,187,107.70x = 159,932,070,511,080.84
  5. Step 5: Solve for x
    x = 159,932,070,511,080.84/13,187,107.70
  6. Step 6: Final answer
    x = 12,127,911.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.