Home / 143,800,305.40-215,700,458.10-99,796,990.60

Finding the Fourth Proportional to 143,800,305.40, 215,700,458.10 and 99,796,990.60

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Solution

The fourth proportional to 143,800,305.40, 215,700,458.10 and 99,796,990.60 is: 149,695,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,800,305.40 : 215,700,458.10 = 99,796,990.60 : x
  2. Step 2: Convert to fraction form
    143,800,305.40/215,700,458.10 = 99,796,990.60/x
  3. Step 3: Cross multiply
    143,800,305.40x = 215,700,458.10 × 99,796,990.60
  4. Step 4: Simplify right side
    143,800,305.40x = 21,526,256,589,421,392
  5. Step 5: Solve for x
    x = 21,526,256,589,421,392/143,800,305.40
  6. Step 6: Final answer
    x = 149,695,485.90

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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.