Home / 1,279,063,972.80-1,916,045,042.40-733,167,777.60

Finding the Fourth Proportional to 1,279,063,972.80, 1,916,045,042.40 and 733,167,777.60

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Solution

The fourth proportional to 1,279,063,972.80, 1,916,045,042.40 and 733,167,777.60 is: 1,098,289,464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,063,972.80 : 1,916,045,042.40 = 733,167,777.60 : x
  2. Step 2: Convert to fraction form
    1,279,063,972.80/1,916,045,042.40 = 733,167,777.60/x
  3. Step 3: Cross multiply
    1,279,063,972.80x = 1,916,045,042.40 × 733,167,777.60
  4. Step 4: Simplify right side
    1,279,063,972.80x = 1,404,782,485,517,905,920
  5. Step 5: Solve for x
    x = 1,404,782,485,517,905,920/1,279,063,972.80
  6. Step 6: Final answer
    x = 1,098,289,464.32

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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.