Home / 143,271,434.60-214,411,140.30-85,804,947.80

Finding the Fourth Proportional to 143,271,434.60, 214,411,140.30 and 85,804,947.80

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Solution

The fourth proportional to 143,271,434.60, 214,411,140.30 and 85,804,947.80 is: 128,410,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271,434.60 : 214,411,140.30 = 85,804,947.80 : x
  2. Step 2: Convert to fraction form
    143,271,434.60/214,411,140.30 = 85,804,947.80/x
  3. Step 3: Cross multiply
    143,271,434.60x = 214,411,140.30 × 85,804,947.80
  4. Step 4: Simplify right side
    143,271,434.60x = 18,397,536,701,179,976
  5. Step 5: Solve for x
    x = 18,397,536,701,179,976/143,271,434.60
  6. Step 6: Final answer
    x = 128,410,361.44

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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.