Home / 12,620,425,185-17,416,699,563.06-6,981,543,816.84

Finding the Fourth Proportional to 12,620,425,185, 17,416,699,563.06 and 6,981,543,816.84

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Solution

The fourth proportional to 12,620,425,185, 17,416,699,563.06 and 6,981,543,816.84 is: 9,634,814,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,425,185 : 17,416,699,563.06 = 6,981,543,816.84 : x
  2. Step 2: Convert to fraction form
    12,620,425,185/17,416,699,563.06 = 6,981,543,816.84/x
  3. Step 3: Cross multiply
    12,620,425,185x = 17,416,699,563.06 × 6,981,543,816.84
  4. Step 4: Simplify right side
    12,620,425,185x = 121,595,451,144,241,479,680
  5. Step 5: Solve for x
    x = 121,595,451,144,241,479,680/12,620,425,185
  6. Step 6: Final answer
    x = 9,634,814,149.43

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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.