Home / 420,288,003.40-630,432,005.10-226,796,240.20

Finding the Fourth Proportional to 420,288,003.40, 630,432,005.10 and 226,796,240.20

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Solution

The fourth proportional to 420,288,003.40, 630,432,005.10 and 226,796,240.20 is: 340,194,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,288,003.40 : 630,432,005.10 = 226,796,240.20 : x
  2. Step 2: Convert to fraction form
    420,288,003.40/630,432,005.10 = 226,796,240.20/x
  3. Step 3: Cross multiply
    420,288,003.40x = 630,432,005.10 × 226,796,240.20
  4. Step 4: Simplify right side
    420,288,003.40x = 142,979,608,458,427,216
  5. Step 5: Solve for x
    x = 142,979,608,458,427,216/420,288,003.40
  6. Step 6: Final answer
    x = 340,194,360.30

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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.