Home / 19,132,213.80-28,698,320.70-11,957,760.30

Finding the Fourth Proportional to 19,132,213.80, 28,698,320.70 and 11,957,760.30

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Solution

The fourth proportional to 19,132,213.80, 28,698,320.70 and 11,957,760.30 is: 17,936,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132,213.80 : 28,698,320.70 = 11,957,760.30 : x
  2. Step 2: Convert to fraction form
    19,132,213.80/28,698,320.70 = 11,957,760.30/x
  3. Step 3: Cross multiply
    19,132,213.80x = 28,698,320.70 × 11,957,760.30
  4. Step 4: Simplify right side
    19,132,213.80x = 343,167,639,943,128.25
  5. Step 5: Solve for x
    x = 343,167,639,943,128.25/19,132,213.80
  6. Step 6: Final answer
    x = 17,936,640.45

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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.