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Finding the Fourth Proportional to 220,493,999.20, 330,740,998.80 and 154,737,032.80

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Solution

The fourth proportional to 220,493,999.20, 330,740,998.80 and 154,737,032.80 is: 232,105,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,493,999.20 : 330,740,998.80 = 154,737,032.80 : x
  2. Step 2: Convert to fraction form
    220,493,999.20/330,740,998.80 = 154,737,032.80/x
  3. Step 3: Cross multiply
    220,493,999.20x = 330,740,998.80 × 154,737,032.80
  4. Step 4: Simplify right side
    220,493,999.20x = 51,177,880,779,620,368
  5. Step 5: Solve for x
    x = 51,177,880,779,620,368/220,493,999.20
  6. Step 6: Final answer
    x = 232,105,549.20

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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.