Home / 1,131,421,874.52-1,561,350,906-629,622,063.12

Finding the Fourth Proportional to 1,131,421,874.52, 1,561,350,906 and 629,622,063.12

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Solution

The fourth proportional to 1,131,421,874.52, 1,561,350,906 and 629,622,063.12 is: 868,872,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,421,874.52 : 1,561,350,906 = 629,622,063.12 : x
  2. Step 2: Convert to fraction form
    1,131,421,874.52/1,561,350,906 = 629,622,063.12/x
  3. Step 3: Cross multiply
    1,131,421,874.52x = 1,561,350,906 × 629,622,063.12
  4. Step 4: Simplify right side
    1,131,421,874.52x = 983,060,978,690,001,152
  5. Step 5: Solve for x
    x = 983,060,978,690,001,152/1,131,421,874.52
  6. Step 6: Final answer
    x = 868,872,169.46

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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.