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Finding the Fourth Proportional to 80,876,109.70, 113,428,107.50 and 80,876,109.70

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Solution

The fourth proportional to 80,876,109.70, 113,428,107.50 and 80,876,109.70 is: 113,428,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,876,109.70 : 113,428,107.50 = 80,876,109.70 : x
  2. Step 2: Convert to fraction form
    80,876,109.70/113,428,107.50 = 80,876,109.70/x
  3. Step 3: Cross multiply
    80,876,109.70x = 113,428,107.50 × 80,876,109.70
  4. Step 4: Simplify right side
    80,876,109.70x = 9,173,624,065,233,394
  5. Step 5: Solve for x
    x = 9,173,624,065,233,394/80,876,109.70
  6. Step 6: Final answer
    x = 113,428,107.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.