Home / 68,796,188,892.12-103,200,140,178.60-20,999,933,988.72

Finding the Fourth Proportional to 68,796,188,892.12, 103,200,140,178.60 and 20,999,933,988.72

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Solution

The fourth proportional to 68,796,188,892.12, 103,200,140,178.60 and 20,999,933,988.72 is: 31,501,688,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796,188,892.12 : 103,200,140,178.60 = 20,999,933,988.72 : x
  2. Step 2: Convert to fraction form
    68,796,188,892.12/103,200,140,178.60 = 20,999,933,988.72/x
  3. Step 3: Cross multiply
    68,796,188,892.12x = 103,200,140,178.60 × 20,999,933,988.72
  4. Step 4: Simplify right side
    68,796,188,892.12x = 2,167,196,131,377,250,828,288
  5. Step 5: Solve for x
    x = 2,167,196,131,377,250,828,288/68,796,188,892.12
  6. Step 6: Final answer
    x = 31,501,688,774.88

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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.