Home / 397,501,480.26-548,570,147.18-221,300,666.68

Finding the Fourth Proportional to 397,501,480.26, 548,570,147.18 and 221,300,666.68

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Solution

The fourth proportional to 397,501,480.26, 548,570,147.18 and 221,300,666.68 is: 305,404,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,501,480.26 : 548,570,147.18 = 221,300,666.68 : x
  2. Step 2: Convert to fraction form
    397,501,480.26/548,570,147.18 = 221,300,666.68/x
  3. Step 3: Cross multiply
    397,501,480.26x = 548,570,147.18 × 221,300,666.68
  4. Step 4: Simplify right side
    397,501,480.26x = 121,398,939,291,679,712
  5. Step 5: Solve for x
    x = 121,398,939,291,679,712/397,501,480.26
  6. Step 6: Final answer
    x = 305,404,999.28

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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.