Home / 143,856,910.80-215,785,366.20-100,018,933.20

Finding the Fourth Proportional to 143,856,910.80, 215,785,366.20 and 100,018,933.20

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Solution

The fourth proportional to 143,856,910.80, 215,785,366.20 and 100,018,933.20 is: 150,028,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,910.80 : 215,785,366.20 = 100,018,933.20 : x
  2. Step 2: Convert to fraction form
    143,856,910.80/215,785,366.20 = 100,018,933.20/x
  3. Step 3: Cross multiply
    143,856,910.80x = 215,785,366.20 × 100,018,933.20
  4. Step 4: Simplify right side
    143,856,910.80x = 21,582,622,127,495,336
  5. Step 5: Solve for x
    x = 21,582,622,127,495,336/143,856,910.80
  6. Step 6: Final answer
    x = 150,028,399.80

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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.