Home / 695,404,987.10-1,043,107,480.65-419,905,972.70

Finding the Fourth Proportional to 695,404,987.10, 1,043,107,480.65 and 419,905,972.70

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Solution

The fourth proportional to 695,404,987.10, 1,043,107,480.65 and 419,905,972.70 is: 629,858,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,404,987.10 : 1,043,107,480.65 = 419,905,972.70 : x
  2. Step 2: Convert to fraction form
    695,404,987.10/1,043,107,480.65 = 419,905,972.70/x
  3. Step 3: Cross multiply
    695,404,987.10x = 1,043,107,480.65 × 419,905,972.70
  4. Step 4: Simplify right side
    695,404,987.10x = 438,007,061,292,984,640
  5. Step 5: Solve for x
    x = 438,007,061,292,984,640/695,404,987.10
  6. Step 6: Final answer
    x = 629,858,959.05

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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.