Home / 719,728,907.20-1,079,593,360.80-447,631,115.20

Finding the Fourth Proportional to 719,728,907.20, 1,079,593,360.80 and 447,631,115.20

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Solution

The fourth proportional to 719,728,907.20, 1,079,593,360.80 and 447,631,115.20 is: 671,446,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,728,907.20 : 1,079,593,360.80 = 447,631,115.20 : x
  2. Step 2: Convert to fraction form
    719,728,907.20/1,079,593,360.80 = 447,631,115.20/x
  3. Step 3: Cross multiply
    719,728,907.20x = 1,079,593,360.80 × 447,631,115.20
  4. Step 4: Simplify right side
    719,728,907.20x = 483,259,580,057,419,904
  5. Step 5: Solve for x
    x = 483,259,580,057,419,904/719,728,907.20
  6. Step 6: Final answer
    x = 671,446,672.80

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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.