Home / 143,271,451.60-214,411,165.80-85,804,964.80

Finding the Fourth Proportional to 143,271,451.60, 214,411,165.80 and 85,804,964.80

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Solution

The fourth proportional to 143,271,451.60, 214,411,165.80 and 85,804,964.80 is: 128,410,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271,451.60 : 214,411,165.80 = 85,804,964.80 : x
  2. Step 2: Convert to fraction form
    143,271,451.60/214,411,165.80 = 85,804,964.80/x
  3. Step 3: Cross multiply
    143,271,451.60x = 214,411,165.80 × 85,804,964.80
  4. Step 4: Simplify right side
    143,271,451.60x = 18,397,542,534,195,964
  5. Step 5: Solve for x
    x = 18,397,542,534,195,964/143,271,451.60
  6. Step 6: Final answer
    x = 128,410,386.92

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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.