Home / 261,151,468.21-360,389,014.21-143,674,278.23

Finding the Fourth Proportional to 261,151,468.21, 360,389,014.21 and 143,674,278.23

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Solution

The fourth proportional to 261,151,468.21, 360,389,014.21 and 143,674,278.23 is: 198,270,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,468.21 : 360,389,014.21 = 143,674,278.23 : x
  2. Step 2: Convert to fraction form
    261,151,468.21/360,389,014.21 = 143,674,278.23/x
  3. Step 3: Cross multiply
    261,151,468.21x = 360,389,014.21 × 143,674,278.23
  4. Step 4: Simplify right side
    261,151,468.21x = 51,778,631,496,122,640
  5. Step 5: Solve for x
    x = 51,778,631,496,122,640/261,151,468.21
  6. Step 6: Final answer
    x = 198,270,497.39

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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.