Home / 21,353,722.80-32,030,584.20-20,361,699.60

Finding the Fourth Proportional to 21,353,722.80, 32,030,584.20 and 20,361,699.60

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Solution

The fourth proportional to 21,353,722.80, 32,030,584.20 and 20,361,699.60 is: 30,542,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353,722.80 : 32,030,584.20 = 20,361,699.60 : x
  2. Step 2: Convert to fraction form
    21,353,722.80/32,030,584.20 = 20,361,699.60/x
  3. Step 3: Cross multiply
    21,353,722.80x = 32,030,584.20 × 20,361,699.60
  4. Step 4: Simplify right side
    21,353,722.80x = 652,197,133,492,906.38
  5. Step 5: Solve for x
    x = 652,197,133,492,906.38/21,353,722.80
  6. Step 6: Final answer
    x = 30,542,549.40

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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.