Home / 431,620,131.84-647,332,553.16-198,226,466.16

Finding the Fourth Proportional to 431,620,131.84, 647,332,553.16 and 198,226,466.16

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Solution

The fourth proportional to 431,620,131.84, 647,332,553.16 and 198,226,466.16 is: 297,294,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,620,131.84 : 647,332,553.16 = 198,226,466.16 : x
  2. Step 2: Convert to fraction form
    431,620,131.84/647,332,553.16 = 198,226,466.16/x
  3. Step 3: Cross multiply
    431,620,131.84x = 647,332,553.16 × 198,226,466.16
  4. Step 4: Simplify right side
    431,620,131.84x = 128,318,444,443,237,136
  5. Step 5: Solve for x
    x = 128,318,444,443,237,136/431,620,131.84
  6. Step 6: Final answer
    x = 297,294,854.84

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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.