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Finding the Fourth Proportional to 84,081,601.70, 126,122,402.55 and 84,081,601.70

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Solution

The fourth proportional to 84,081,601.70, 126,122,402.55 and 84,081,601.70 is: 126,122,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,081,601.70 : 126,122,402.55 = 84,081,601.70 : x
  2. Step 2: Convert to fraction form
    84,081,601.70/126,122,402.55 = 84,081,601.70/x
  3. Step 3: Cross multiply
    84,081,601.70x = 126,122,402.55 × 84,081,601.70
  4. Step 4: Simplify right side
    84,081,601.70x = 10,604,573,616,656,164
  5. Step 5: Solve for x
    x = 10,604,573,616,656,164/84,081,601.70
  6. Step 6: Final answer
    x = 126,122,402.55

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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.