Home / 12,891,015.40-19,313,195.10-6,144,557.80

Finding the Fourth Proportional to 12,891,015.40, 19,313,195.10 and 6,144,557.80

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Solution

The fourth proportional to 12,891,015.40, 19,313,195.10 and 6,144,557.80 is: 9,205,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891,015.40 : 19,313,195.10 = 6,144,557.80 : x
  2. Step 2: Convert to fraction form
    12,891,015.40/19,313,195.10 = 6,144,557.80/x
  3. Step 3: Cross multiply
    12,891,015.40x = 19,313,195.10 × 6,144,557.80
  4. Step 4: Simplify right side
    12,891,015.40x = 118,671,043,594,626.78
  5. Step 5: Solve for x
    x = 118,671,043,594,626.78/12,891,015.40
  6. Step 6: Final answer
    x = 9,205,717.31

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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.