Home / 21,557,393.60-32,288,851.20-19,163,940.80

Finding the Fourth Proportional to 21,557,393.60, 32,288,851.20 and 19,163,940.80

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Solution

The fourth proportional to 21,557,393.60, 32,288,851.20 and 19,163,940.80 is: 28,703,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,393.60 : 32,288,851.20 = 19,163,940.80 : x
  2. Step 2: Convert to fraction form
    21,557,393.60/32,288,851.20 = 19,163,940.80/x
  3. Step 3: Cross multiply
    21,557,393.60x = 32,288,851.20 × 19,163,940.80
  4. Step 4: Simplify right side
    21,557,393.60x = 618,781,632,896,809
  5. Step 5: Solve for x
    x = 618,781,632,896,809/21,557,393.60
  6. Step 6: Final answer
    x = 28,703,916.83

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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.