Home / 664,872,072.48-917,614,600.38-382,608,715.68

Finding the Fourth Proportional to 664,872,072.48, 917,614,600.38 and 382,608,715.68

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Solution

The fourth proportional to 664,872,072.48, 917,614,600.38 and 382,608,715.68 is: 528,052,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,872,072.48 : 917,614,600.38 = 382,608,715.68 : x
  2. Step 2: Convert to fraction form
    664,872,072.48/917,614,600.38 = 382,608,715.68/x
  3. Step 3: Cross multiply
    664,872,072.48x = 917,614,600.38 × 382,608,715.68
  4. Step 4: Simplify right side
    664,872,072.48x = 351,087,343,740,608,256
  5. Step 5: Solve for x
    x = 351,087,343,740,608,256/664,872,072.48
  6. Step 6: Final answer
    x = 528,052,475.46

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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.