Home / 21,862,136.80-32,793,205.20-20,219,845.60

Finding the Fourth Proportional to 21,862,136.80, 32,793,205.20 and 20,219,845.60

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Solution

The fourth proportional to 21,862,136.80, 32,793,205.20 and 20,219,845.60 is: 30,329,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862,136.80 : 32,793,205.20 = 20,219,845.60 : x
  2. Step 2: Convert to fraction form
    21,862,136.80/32,793,205.20 = 20,219,845.60/x
  3. Step 3: Cross multiply
    21,862,136.80x = 32,793,205.20 × 20,219,845.60
  4. Step 4: Simplify right side
    21,862,136.80x = 663,073,545,873,117.12
  5. Step 5: Solve for x
    x = 663,073,545,873,117.12/21,862,136.80
  6. Step 6: Final answer
    x = 30,329,768.40

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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.