Home / 67,220,385.40-100,843,019.70-21,783,662.20

Finding the Fourth Proportional to 67,220,385.40, 100,843,019.70 and 21,783,662.20

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Solution

The fourth proportional to 67,220,385.40, 100,843,019.70 and 21,783,662.20 is: 32,679,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220,385.40 : 100,843,019.70 = 21,783,662.20 : x
  2. Step 2: Convert to fraction form
    67,220,385.40/100,843,019.70 = 21,783,662.20/x
  3. Step 3: Cross multiply
    67,220,385.40x = 100,843,019.70 × 21,783,662.20
  4. Step 4: Simplify right side
    67,220,385.40x = 2,196,730,276,372,745.25
  5. Step 5: Solve for x
    x = 2,196,730,276,372,745.25/67,220,385.40
  6. Step 6: Final answer
    x = 32,679,525.17

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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.