Home / 39,929,569.80-55,102,843.35-21,594,855.30

Finding the Fourth Proportional to 39,929,569.80, 55,102,843.35 and 21,594,855.30

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Solution

The fourth proportional to 39,929,569.80, 55,102,843.35 and 21,594,855.30 is: 29,800,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929,569.80 : 55,102,843.35 = 21,594,855.30 : x
  2. Step 2: Convert to fraction form
    39,929,569.80/55,102,843.35 = 21,594,855.30/x
  3. Step 3: Cross multiply
    39,929,569.80x = 55,102,843.35 × 21,594,855.30
  4. Step 4: Simplify right side
    39,929,569.80x = 1,189,937,928,761,817.25
  5. Step 5: Solve for x
    x = 1,189,937,928,761,817.25/39,929,569.80
  6. Step 6: Final answer
    x = 29,800,920.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.