Home / 84,190,082.54-116,118,294.34-72,449,140.23

Finding the Fourth Proportional to 84,190,082.54, 116,118,294.34 and 72,449,140.23

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Solution

The fourth proportional to 84,190,082.54, 116,118,294.34 and 72,449,140.23 is: 99,924,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,190,082.54 : 116,118,294.34 = 72,449,140.23 : x
  2. Step 2: Convert to fraction form
    84,190,082.54/116,118,294.34 = 72,449,140.23/x
  3. Step 3: Cross multiply
    84,190,082.54x = 116,118,294.34 × 72,449,140.23
  4. Step 4: Simplify right side
    84,190,082.54x = 8,412,670,589,861,433
  5. Step 5: Solve for x
    x = 8,412,670,589,861,433/84,190,082.54
  6. Step 6: Final answer
    x = 99,924,721.97

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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.