Home / 740,124,144.25-1,021,372,517.76-405,543,505.28

Finding the Fourth Proportional to 740,124,144.25, 1,021,372,517.76 and 405,543,505.28

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Solution

The fourth proportional to 740,124,144.25, 1,021,372,517.76 and 405,543,505.28 is: 559,650,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,124,144.25 : 1,021,372,517.76 = 405,543,505.28 : x
  2. Step 2: Convert to fraction form
    740,124,144.25/1,021,372,517.76 = 405,543,505.28/x
  3. Step 3: Cross multiply
    740,124,144.25x = 1,021,372,517.76 × 405,543,505.28
  4. Step 4: Simplify right side
    740,124,144.25x = 414,210,991,042,401,472
  5. Step 5: Solve for x
    x = 414,210,991,042,401,472/740,124,144.25
  6. Step 6: Final answer
    x = 559,650,694.09

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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.