Home / 485,215,383.23-727,082,464.28-288,090,617.84

Finding the Fourth Proportional to 485,215,383.23, 727,082,464.28 and 288,090,617.84

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Solution

The fourth proportional to 485,215,383.23, 727,082,464.28 and 288,090,617.84 is: 431,696,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,215,383.23 : 727,082,464.28 = 288,090,617.84 : x
  2. Step 2: Convert to fraction form
    485,215,383.23/727,082,464.28 = 288,090,617.84/x
  3. Step 3: Cross multiply
    485,215,383.23x = 727,082,464.28 × 288,090,617.84
  4. Step 4: Simplify right side
    485,215,383.23x = 209,465,636,351,419,488
  5. Step 5: Solve for x
    x = 209,465,636,351,419,488/485,215,383.23
  6. Step 6: Final answer
    x = 431,696,198.42

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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.