Home / 19,979,900.80-29,969,851.20-10,878,481.60

Finding the Fourth Proportional to 19,979,900.80, 29,969,851.20 and 10,878,481.60

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Solution

The fourth proportional to 19,979,900.80, 29,969,851.20 and 10,878,481.60 is: 16,317,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979,900.80 : 29,969,851.20 = 10,878,481.60 : x
  2. Step 2: Convert to fraction form
    19,979,900.80/29,969,851.20 = 10,878,481.60/x
  3. Step 3: Cross multiply
    19,979,900.80x = 29,969,851.20 × 10,878,481.60
  4. Step 4: Simplify right side
    19,979,900.80x = 326,026,474,833,937.88
  5. Step 5: Solve for x
    x = 326,026,474,833,937.88/19,979,900.80
  6. Step 6: Final answer
    x = 16,317,722.40

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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.