Home / 40,215,191.31-55,495,306.08-21,880,549.71

Finding the Fourth Proportional to 40,215,191.31, 55,495,306.08 and 21,880,549.71

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Solution

The fourth proportional to 40,215,191.31, 55,495,306.08 and 21,880,549.71 is: 30,194,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215,191.31 : 55,495,306.08 = 21,880,549.71 : x
  2. Step 2: Convert to fraction form
    40,215,191.31/55,495,306.08 = 21,880,549.71/x
  3. Step 3: Cross multiply
    40,215,191.31x = 55,495,306.08 × 21,880,549.71
  4. Step 4: Simplify right side
    40,215,191.31x = 1,214,267,803,355,105.25
  5. Step 5: Solve for x
    x = 1,214,267,803,355,105.25/40,215,191.31
  6. Step 6: Final answer
    x = 30,194,256.54

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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.