Home / 18,944,042.40-28,416,063.60-12,897,424.80

Finding the Fourth Proportional to 18,944,042.40, 28,416,063.60 and 12,897,424.80

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Solution

The fourth proportional to 18,944,042.40, 28,416,063.60 and 12,897,424.80 is: 19,346,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944,042.40 : 28,416,063.60 = 12,897,424.80 : x
  2. Step 2: Convert to fraction form
    18,944,042.40/28,416,063.60 = 12,897,424.80/x
  3. Step 3: Cross multiply
    18,944,042.40x = 28,416,063.60 × 12,897,424.80
  4. Step 4: Simplify right side
    18,944,042.40x = 366,494,043,393,017.31
  5. Step 5: Solve for x
    x = 366,494,043,393,017.31/18,944,042.40
  6. Step 6: Final answer
    x = 19,346,137.20

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1.5x scale

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.