Home / 21,851,469.20-32,777,203.80-20,009,140.40

Finding the Fourth Proportional to 21,851,469.20, 32,777,203.80 and 20,009,140.40

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Solution

The fourth proportional to 21,851,469.20, 32,777,203.80 and 20,009,140.40 is: 30,013,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,469.20 : 32,777,203.80 = 20,009,140.40 : x
  2. Step 2: Convert to fraction form
    21,851,469.20/32,777,203.80 = 20,009,140.40/x
  3. Step 3: Cross multiply
    21,851,469.20x = 32,777,203.80 × 20,009,140.40
  4. Step 4: Simplify right side
    21,851,469.20x = 655,843,672,753,613.50
  5. Step 5: Solve for x
    x = 655,843,672,753,613.50/21,851,469.20
  6. Step 6: Final answer
    x = 30,013,710.60

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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.