Home / 485,631,198.04-669,747,518.40-344,222,719.96

Finding the Fourth Proportional to 485,631,198.04, 669,747,518.40 and 344,222,719.96

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Solution

The fourth proportional to 485,631,198.04, 669,747,518.40 and 344,222,719.96 is: 474,727,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,631,198.04 : 669,747,518.40 = 344,222,719.96 : x
  2. Step 2: Convert to fraction form
    485,631,198.04/669,747,518.40 = 344,222,719.96/x
  3. Step 3: Cross multiply
    485,631,198.04x = 669,747,518.40 × 344,222,719.96
  4. Step 4: Simplify right side
    485,631,198.04x = 230,542,312,470,108,128
  5. Step 5: Solve for x
    x = 230,542,312,470,108,128/485,631,198.04
  6. Step 6: Final answer
    x = 474,727,145.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.