Home / 143,856,909.80-215,785,364.70-100,018,932.20

Finding the Fourth Proportional to 143,856,909.80, 215,785,364.70 and 100,018,932.20

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Solution

The fourth proportional to 143,856,909.80, 215,785,364.70 and 100,018,932.20 is: 150,028,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,909.80 : 215,785,364.70 = 100,018,932.20 : x
  2. Step 2: Convert to fraction form
    143,856,909.80/215,785,364.70 = 100,018,932.20/x
  3. Step 3: Cross multiply
    143,856,909.80x = 215,785,364.70 × 100,018,932.20
  4. Step 4: Simplify right side
    143,856,909.80x = 21,582,621,761,681,572
  5. Step 5: Solve for x
    x = 21,582,621,761,681,572/143,856,909.80
  6. Step 6: Final answer
    x = 150,028,398.30

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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.