Home / 21,789,007.80-32,683,511.70-20,146,716.60

Finding the Fourth Proportional to 21,789,007.80, 32,683,511.70 and 20,146,716.60

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Solution

The fourth proportional to 21,789,007.80, 32,683,511.70 and 20,146,716.60 is: 30,220,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,007.80 : 32,683,511.70 = 20,146,716.60 : x
  2. Step 2: Convert to fraction form
    21,789,007.80/32,683,511.70 = 20,146,716.60/x
  3. Step 3: Cross multiply
    21,789,007.80x = 32,683,511.70 × 20,146,716.60
  4. Step 4: Simplify right side
    21,789,007.80x = 658,465,447,712,684.25
  5. Step 5: Solve for x
    x = 658,465,447,712,684.25/21,789,007.80
  6. Step 6: Final answer
    x = 30,220,074.90

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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.