Home / 260,820,144.15-391,230,216.23-139,887,792.15

Finding the Fourth Proportional to 260,820,144.15, 391,230,216.23 and 139,887,792.15

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Solution

The fourth proportional to 260,820,144.15, 391,230,216.23 and 139,887,792.15 is: 209,831,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,820,144.15 : 391,230,216.23 = 139,887,792.15 : x
  2. Step 2: Convert to fraction form
    260,820,144.15/391,230,216.23 = 139,887,792.15/x
  3. Step 3: Cross multiply
    260,820,144.15x = 391,230,216.23 × 139,887,792.15
  4. Step 4: Simplify right side
    260,820,144.15x = 54,728,331,170,082,360
  5. Step 5: Solve for x
    x = 54,728,331,170,082,360/260,820,144.15
  6. Step 6: Final answer
    x = 209,831,688.23

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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.