Home / 21,503,619.80-32,255,429.70-19,861,328.60

Finding the Fourth Proportional to 21,503,619.80, 32,255,429.70 and 19,861,328.60

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Solution

The fourth proportional to 21,503,619.80, 32,255,429.70 and 19,861,328.60 is: 29,791,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503,619.80 : 32,255,429.70 = 19,861,328.60 : x
  2. Step 2: Convert to fraction form
    21,503,619.80/32,255,429.70 = 19,861,328.60/x
  3. Step 3: Cross multiply
    21,503,619.80x = 32,255,429.70 × 19,861,328.60
  4. Step 4: Simplify right side
    21,503,619.80x = 640,635,688,405,899.50
  5. Step 5: Solve for x
    x = 640,635,688,405,899.50/21,503,619.80
  6. Step 6: Final answer
    x = 29,791,992.90

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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.