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Finding the Fourth Proportional to 100,114,003.80, 150,171,005.70 and 42,591,821.40

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Solution

The fourth proportional to 100,114,003.80, 150,171,005.70 and 42,591,821.40 is: 63,887,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,114,003.80 : 150,171,005.70 = 42,591,821.40 : x
  2. Step 2: Convert to fraction form
    100,114,003.80/150,171,005.70 = 42,591,821.40/x
  3. Step 3: Cross multiply
    100,114,003.80x = 150,171,005.70 × 42,591,821.40
  4. Step 4: Simplify right side
    100,114,003.80x = 6,396,056,654,232,781
  5. Step 5: Solve for x
    x = 6,396,056,654,232,781/100,114,003.80
  6. Step 6: Final answer
    x = 63,887,732.10

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1.5x scale

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.