Home / 28,971,092.80-43,456,639.20-18,893,396.80

Finding the Fourth Proportional to 28,971,092.80, 43,456,639.20 and 18,893,396.80

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Solution

The fourth proportional to 28,971,092.80, 43,456,639.20 and 18,893,396.80 is: 28,340,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971,092.80 : 43,456,639.20 = 18,893,396.80 : x
  2. Step 2: Convert to fraction form
    28,971,092.80/43,456,639.20 = 18,893,396.80/x
  3. Step 3: Cross multiply
    28,971,092.80x = 43,456,639.20 × 18,893,396.80
  4. Step 4: Simplify right side
    28,971,092.80x = 821,043,528,000,034.62
  5. Step 5: Solve for x
    x = 821,043,528,000,034.62/28,971,092.80
  6. Step 6: Final answer
    x = 28,340,095.20

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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.