Home / 76,887,513,909.64-115,215,450,808.82-68,508,425,952.29

Finding the Fourth Proportional to 76,887,513,909.64, 115,215,450,808.82 and 68,508,425,952.29

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Solution

The fourth proportional to 76,887,513,909.64, 115,215,450,808.82 and 68,508,425,952.29 is: 102,659,440,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,887,513,909.64 : 115,215,450,808.82 = 68,508,425,952.29 : x
  2. Step 2: Convert to fraction form
    76,887,513,909.64/115,215,450,808.82 = 68,508,425,952.29/x
  3. Step 3: Cross multiply
    76,887,513,909.64x = 115,215,450,808.82 × 68,508,425,952.29
  4. Step 4: Simplify right side
    76,887,513,909.64x = 7,893,229,180,295,756,906,496
  5. Step 5: Solve for x
    x = 7,893,229,180,295,756,906,496/76,887,513,909.64
  6. Step 6: Final answer
    x = 102,659,440,771.78

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1.5x scale

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.