Home / 221,434,885.20-332,152,327.80-68,061,012.60

Finding the Fourth Proportional to 221,434,885.20, 332,152,327.80 and 68,061,012.60

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Solution

The fourth proportional to 221,434,885.20, 332,152,327.80 and 68,061,012.60 is: 102,091,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434,885.20 : 332,152,327.80 = 68,061,012.60 : x
  2. Step 2: Convert to fraction form
    221,434,885.20/332,152,327.80 = 68,061,012.60/x
  3. Step 3: Cross multiply
    221,434,885.20x = 332,152,327.80 × 68,061,012.60
  4. Step 4: Simplify right side
    221,434,885.20x = 22,606,623,767,515,128
  5. Step 5: Solve for x
    x = 22,606,623,767,515,128/221,434,885.20
  6. Step 6: Final answer
    x = 102,091,518.90

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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.