Home / 512,071,406.48-768,075,223.24-315,372,249.22

Finding the Fourth Proportional to 512,071,406.48, 768,075,223.24 and 315,372,249.22

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Solution

The fourth proportional to 512,071,406.48, 768,075,223.24 and 315,372,249.22 is: 473,038,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,071,406.48 : 768,075,223.24 = 315,372,249.22 : x
  2. Step 2: Convert to fraction form
    512,071,406.48/768,075,223.24 = 315,372,249.22/x
  3. Step 3: Cross multiply
    512,071,406.48x = 768,075,223.24 × 315,372,249.22
  4. Step 4: Simplify right side
    512,071,406.48x = 242,229,610,723,352,448
  5. Step 5: Solve for x
    x = 242,229,610,723,352,448/512,071,406.48
  6. Step 6: Final answer
    x = 473,038,735.73

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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.