Home / 1,131,421,844.52-1,561,350,864.60-629,622,033.12

Finding the Fourth Proportional to 1,131,421,844.52, 1,561,350,864.60 and 629,622,033.12

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Solution

The fourth proportional to 1,131,421,844.52, 1,561,350,864.60 and 629,622,033.12 is: 868,872,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,421,844.52 : 1,561,350,864.60 = 629,622,033.12 : x
  2. Step 2: Convert to fraction form
    1,131,421,844.52/1,561,350,864.60 = 629,622,033.12/x
  3. Step 3: Cross multiply
    1,131,421,844.52x = 1,561,350,864.60 × 629,622,033.12
  4. Step 4: Simplify right side
    1,131,421,844.52x = 983,060,905,783,121,792
  5. Step 5: Solve for x
    x = 983,060,905,783,121,792/1,131,421,844.52
  6. Step 6: Final answer
    x = 868,872,128.06

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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.