Home / 629,679,146.52-869,235,859.26-406,769,513.88

Finding the Fourth Proportional to 629,679,146.52, 869,235,859.26 and 406,769,513.88

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Solution

The fourth proportional to 629,679,146.52, 869,235,859.26 and 406,769,513.88 is: 561,521,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,679,146.52 : 869,235,859.26 = 406,769,513.88 : x
  2. Step 2: Convert to fraction form
    629,679,146.52/869,235,859.26 = 406,769,513.88/x
  3. Step 3: Cross multiply
    629,679,146.52x = 869,235,859.26 × 406,769,513.88
  4. Step 4: Simplify right side
    629,679,146.52x = 353,578,647,918,254,272
  5. Step 5: Solve for x
    x = 353,578,647,918,254,272/629,679,146.52
  6. Step 6: Final answer
    x = 561,521,927.27

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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.