Home / 420,388,210.80-630,582,316.20-226,677,966.30

Finding the Fourth Proportional to 420,388,210.80, 630,582,316.20 and 226,677,966.30

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Solution

The fourth proportional to 420,388,210.80, 630,582,316.20 and 226,677,966.30 is: 340,016,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,388,210.80 : 630,582,316.20 = 226,677,966.30 : x
  2. Step 2: Convert to fraction form
    420,388,210.80/630,582,316.20 = 226,677,966.30/x
  3. Step 3: Cross multiply
    420,388,210.80x = 630,582,316.20 × 226,677,966.30
  4. Step 4: Simplify right side
    420,388,210.80x = 142,939,117,020,959,568
  5. Step 5: Solve for x
    x = 142,939,117,020,959,568/420,388,210.80
  6. Step 6: Final answer
    x = 340,016,949.45

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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.