Home / 489,641,857.60-734,462,786.40-126,136,213.60

Finding the Fourth Proportional to 489,641,857.60, 734,462,786.40 and 126,136,213.60

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Solution

The fourth proportional to 489,641,857.60, 734,462,786.40 and 126,136,213.60 is: 189,204,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,641,857.60 : 734,462,786.40 = 126,136,213.60 : x
  2. Step 2: Convert to fraction form
    489,641,857.60/734,462,786.40 = 126,136,213.60/x
  3. Step 3: Cross multiply
    489,641,857.60x = 734,462,786.40 × 126,136,213.60
  4. Step 4: Simplify right side
    489,641,857.60x = 92,642,354,906,601,568
  5. Step 5: Solve for x
    x = 92,642,354,906,601,568/489,641,857.60
  6. Step 6: Final answer
    x = 189,204,320.40

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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.