Home / 19,917,799.20-29,876,698.80-19,728,842.40

Finding the Fourth Proportional to 19,917,799.20, 29,876,698.80 and 19,728,842.40

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Solution

The fourth proportional to 19,917,799.20, 29,876,698.80 and 19,728,842.40 is: 29,593,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917,799.20 : 29,876,698.80 = 19,728,842.40 : x
  2. Step 2: Convert to fraction form
    19,917,799.20/29,876,698.80 = 19,728,842.40/x
  3. Step 3: Cross multiply
    19,917,799.20x = 29,876,698.80 × 19,728,842.40
  4. Step 4: Simplify right side
    19,917,799.20x = 589,432,682,057,469.12
  5. Step 5: Solve for x
    x = 589,432,682,057,469.12/19,917,799.20
  6. Step 6: Final answer
    x = 29,593,263.60

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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.