Home / 419,885,396.43-579,455,763.83-229,156,857.60

Finding the Fourth Proportional to 419,885,396.43, 579,455,763.83 and 229,156,857.60

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Solution

The fourth proportional to 419,885,396.43, 579,455,763.83 and 229,156,857.60 is: 316,244,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,885,396.43 : 579,455,763.83 = 229,156,857.60 : x
  2. Step 2: Convert to fraction form
    419,885,396.43/579,455,763.83 = 229,156,857.60/x
  3. Step 3: Cross multiply
    419,885,396.43x = 579,455,763.83 × 229,156,857.60
  4. Step 4: Simplify right side
    419,885,396.43x = 132,786,261,957,490,544
  5. Step 5: Solve for x
    x = 132,786,261,957,490,544/419,885,396.43
  6. Step 6: Final answer
    x = 316,244,058.70

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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.