Home / 13,084,513.20-19,626,769.80-7,415,809.20

Finding the Fourth Proportional to 13,084,513.20, 19,626,769.80 and 7,415,809.20

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Solution

The fourth proportional to 13,084,513.20, 19,626,769.80 and 7,415,809.20 is: 11,123,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084,513.20 : 19,626,769.80 = 7,415,809.20 : x
  2. Step 2: Convert to fraction form
    13,084,513.20/19,626,769.80 = 7,415,809.20/x
  3. Step 3: Cross multiply
    13,084,513.20x = 19,626,769.80 × 7,415,809.20
  4. Step 4: Simplify right side
    13,084,513.20x = 145,548,380,049,122.16
  5. Step 5: Solve for x
    x = 145,548,380,049,122.16/13,084,513.20
  6. Step 6: Final answer
    x = 11,123,713.80

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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.