Home / 19,646,999.20-29,470,498.80-12,078,229.60

Finding the Fourth Proportional to 19,646,999.20, 29,470,498.80 and 12,078,229.60

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Solution

The fourth proportional to 19,646,999.20, 29,470,498.80 and 12,078,229.60 is: 18,117,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646,999.20 : 29,470,498.80 = 12,078,229.60 : x
  2. Step 2: Convert to fraction form
    19,646,999.20/29,470,498.80 = 12,078,229.60/x
  3. Step 3: Cross multiply
    19,646,999.20x = 29,470,498.80 × 12,078,229.60
  4. Step 4: Simplify right side
    19,646,999.20x = 355,951,450,932,924.50
  5. Step 5: Solve for x
    x = 355,951,450,932,924.50/19,646,999.20
  6. Step 6: Final answer
    x = 18,117,344.40

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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.