Home / 2,815,511.20-4,223,266.80-2,653,309.60

Finding the Fourth Proportional to 2,815,511.20, 4,223,266.80 and 2,653,309.60

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Solution

The fourth proportional to 2,815,511.20, 4,223,266.80 and 2,653,309.60 is: 3,979,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,511.20 : 4,223,266.80 = 2,653,309.60 : x
  2. Step 2: Convert to fraction form
    2,815,511.20/4,223,266.80 = 2,653,309.60/x
  3. Step 3: Cross multiply
    2,815,511.20x = 4,223,266.80 × 2,653,309.60
  4. Step 4: Simplify right side
    2,815,511.20x = 11,205,634,343,801.28
  5. Step 5: Solve for x
    x = 11,205,634,343,801.28/2,815,511.20
  6. Step 6: Final answer
    x = 3,979,964.40

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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.