Home / 40,215,223.20-55,495,350.12-21,880,581.60

Finding the Fourth Proportional to 40,215,223.20, 55,495,350.12 and 21,880,581.60

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Solution

The fourth proportional to 40,215,223.20, 55,495,350.12 and 21,880,581.60 is: 30,194,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215,223.20 : 55,495,350.12 = 21,880,581.60 : x
  2. Step 2: Convert to fraction form
    40,215,223.20/55,495,350.12 = 21,880,581.60/x
  3. Step 3: Cross multiply
    40,215,223.20x = 55,495,350.12 × 21,880,581.60
  4. Step 4: Simplify right side
    40,215,223.20x = 1,214,270,536,721,229.75
  5. Step 5: Solve for x
    x = 1,214,270,536,721,229.75/40,215,223.20
  6. Step 6: Final answer
    x = 30,194,300.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.