Home / 99,606,664.80-149,409,997.20-79,451,272.80

Finding the Fourth Proportional to 99,606,664.80, 149,409,997.20 and 79,451,272.80

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Solution

The fourth proportional to 99,606,664.80, 149,409,997.20 and 79,451,272.80 is: 119,176,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,606,664.80 : 149,409,997.20 = 79,451,272.80 : x
  2. Step 2: Convert to fraction form
    99,606,664.80/149,409,997.20 = 79,451,272.80/x
  3. Step 3: Cross multiply
    99,606,664.80x = 149,409,997.20 × 79,451,272.80
  4. Step 4: Simplify right side
    99,606,664.80x = 11,870,814,446,584,434
  5. Step 5: Solve for x
    x = 11,870,814,446,584,434/99,606,664.80
  6. Step 6: Final answer
    x = 119,176,909.20

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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.