Home / 21,789,021.80-32,683,532.70-20,146,730.60

Finding the Fourth Proportional to 21,789,021.80, 32,683,532.70 and 20,146,730.60

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Solution

The fourth proportional to 21,789,021.80, 32,683,532.70 and 20,146,730.60 is: 30,220,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,021.80 : 32,683,532.70 = 20,146,730.60 : x
  2. Step 2: Convert to fraction form
    21,789,021.80/32,683,532.70 = 20,146,730.60/x
  3. Step 3: Cross multiply
    21,789,021.80x = 32,683,532.70 × 20,146,730.60
  4. Step 4: Simplify right side
    21,789,021.80x = 658,466,328,363,190.62
  5. Step 5: Solve for x
    x = 658,466,328,363,190.62/21,789,021.80
  6. Step 6: Final answer
    x = 30,220,095.90

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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.