Home / 143,271,448.60-214,411,161.30-85,804,961.80

Finding the Fourth Proportional to 143,271,448.60, 214,411,161.30 and 85,804,961.80

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Solution

The fourth proportional to 143,271,448.60, 214,411,161.30 and 85,804,961.80 is: 128,410,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271,448.60 : 214,411,161.30 = 85,804,961.80 : x
  2. Step 2: Convert to fraction form
    143,271,448.60/214,411,161.30 = 85,804,961.80/x
  3. Step 3: Cross multiply
    143,271,448.60x = 214,411,161.30 × 85,804,961.80
  4. Step 4: Simplify right side
    143,271,448.60x = 18,397,541,504,840,140
  5. Step 5: Solve for x
    x = 18,397,541,504,840,140/143,271,448.60
  6. Step 6: Final answer
    x = 128,410,382.42

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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.