Home / 12,128,410.70-18,192,616.05-5,751,118.70

Finding the Fourth Proportional to 12,128,410.70, 18,192,616.05 and 5,751,118.70

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Solution

The fourth proportional to 12,128,410.70, 18,192,616.05 and 5,751,118.70 is: 8,626,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,410.70 : 18,192,616.05 = 5,751,118.70 : x
  2. Step 2: Convert to fraction form
    12,128,410.70/18,192,616.05 = 5,751,118.70/x
  3. Step 3: Cross multiply
    12,128,410.70x = 18,192,616.05 × 5,751,118.70
  4. Step 4: Simplify right side
    12,128,410.70x = 104,627,894,367,075.14
  5. Step 5: Solve for x
    x = 104,627,894,367,075.14/12,128,410.70
  6. Step 6: Final answer
    x = 8,626,678.05

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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.