Home / 220,847,738.40-331,271,607.60-139,218,400.80

Finding the Fourth Proportional to 220,847,738.40, 331,271,607.60 and 139,218,400.80

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Solution

The fourth proportional to 220,847,738.40, 331,271,607.60 and 139,218,400.80 is: 208,827,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,847,738.40 : 331,271,607.60 = 139,218,400.80 : x
  2. Step 2: Convert to fraction form
    220,847,738.40/331,271,607.60 = 139,218,400.80/x
  3. Step 3: Cross multiply
    220,847,738.40x = 331,271,607.60 × 139,218,400.80
  4. Step 4: Simplify right side
    220,847,738.40x = 46,119,103,440,517,136
  5. Step 5: Solve for x
    x = 46,119,103,440,517,136/220,847,738.40
  6. Step 6: Final answer
    x = 208,827,601.20

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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.