Home / 872,890,472.94-1,309,508,193.96-320,198,033.07

Finding the Fourth Proportional to 872,890,472.94, 1,309,508,193.96 and 320,198,033.07

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Solution

The fourth proportional to 872,890,472.94, 1,309,508,193.96 and 320,198,033.07 is: 480,360,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,890,472.94 : 1,309,508,193.96 = 320,198,033.07 : x
  2. Step 2: Convert to fraction form
    872,890,472.94/1,309,508,193.96 = 320,198,033.07/x
  3. Step 3: Cross multiply
    872,890,472.94x = 1,309,508,193.96 × 320,198,033.07
  4. Step 4: Simplify right side
    872,890,472.94x = 419,301,947,995,040,064
  5. Step 5: Solve for x
    x = 419,301,947,995,040,064/872,890,472.94
  6. Step 6: Final answer
    x = 480,360,321.25

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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.