Home / 261,151,469.21-360,389,015.59-143,674,279.23

Finding the Fourth Proportional to 261,151,469.21, 360,389,015.59 and 143,674,279.23

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Solution

The fourth proportional to 261,151,469.21, 360,389,015.59 and 143,674,279.23 is: 198,270,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,469.21 : 360,389,015.59 = 143,674,279.23 : x
  2. Step 2: Convert to fraction form
    261,151,469.21/360,389,015.59 = 143,674,279.23/x
  3. Step 3: Cross multiply
    261,151,469.21x = 360,389,015.59 × 143,674,279.23
  4. Step 4: Simplify right side
    261,151,469.21x = 51,778,632,057,302,472
  5. Step 5: Solve for x
    x = 51,778,632,057,302,472/261,151,469.21
  6. Step 6: Final answer
    x = 198,270,498.78

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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.