Home / 221,104,999.80-331,657,499.70-156,481,774.20

Finding the Fourth Proportional to 221,104,999.80, 331,657,499.70 and 156,481,774.20

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Solution

The fourth proportional to 221,104,999.80, 331,657,499.70 and 156,481,774.20 is: 234,722,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,104,999.80 : 331,657,499.70 = 156,481,774.20 : x
  2. Step 2: Convert to fraction form
    221,104,999.80/331,657,499.70 = 156,481,774.20/x
  3. Step 3: Cross multiply
    221,104,999.80x = 331,657,499.70 × 156,481,774.20
  4. Step 4: Simplify right side
    221,104,999.80x = 51,898,353,979,791,960
  5. Step 5: Solve for x
    x = 51,898,353,979,791,960/221,104,999.80
  6. Step 6: Final answer
    x = 234,722,661.30

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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.