Home / 81,942,702,453.45-113,018,318,939.61-70,530,384,301.56

Finding the Fourth Proportional to 81,942,702,453.45, 113,018,318,939.61 and 70,530,384,301.56

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Solution

The fourth proportional to 81,942,702,453.45, 113,018,318,939.61 and 70,530,384,301.56 is: 97,278,039,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942,702,453.45 : 113,018,318,939.61 = 70,530,384,301.56 : x
  2. Step 2: Convert to fraction form
    81,942,702,453.45/113,018,318,939.61 = 70,530,384,301.56/x
  3. Step 3: Cross multiply
    81,942,702,453.45x = 113,018,318,939.61 × 70,530,384,301.56
  4. Step 4: Simplify right side
    81,942,702,453.45x = 7,971,225,467,926,970,630,144
  5. Step 5: Solve for x
    x = 7,971,225,467,926,970,630,144/81,942,702,453.45
  6. Step 6: Final answer
    x = 97,278,039,767.54

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1.5x scale

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.