Home / 420,288,001.40-630,432,002.10-226,796,238.20

Finding the Fourth Proportional to 420,288,001.40, 630,432,002.10 and 226,796,238.20

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Solution

The fourth proportional to 420,288,001.40, 630,432,002.10 and 226,796,238.20 is: 340,194,357.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,288,001.40 : 630,432,002.10 = 226,796,238.20 : x
  2. Step 2: Convert to fraction form
    420,288,001.40/630,432,002.10 = 226,796,238.20/x
  3. Step 3: Cross multiply
    420,288,001.40x = 630,432,002.10 × 226,796,238.20
  4. Step 4: Simplify right side
    420,288,001.40x = 142,979,606,517,174,496
  5. Step 5: Solve for x
    x = 142,979,606,517,174,496/420,288,001.40
  6. Step 6: Final answer
    x = 340,194,357.30

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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.