Home / 28,970,757.80-43,456,136.70-8,775,999.80

Finding the Fourth Proportional to 28,970,757.80, 43,456,136.70 and 8,775,999.80

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Solution

The fourth proportional to 28,970,757.80, 43,456,136.70 and 8,775,999.80 is: 13,163,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970,757.80 : 43,456,136.70 = 8,775,999.80 : x
  2. Step 2: Convert to fraction form
    28,970,757.80/43,456,136.70 = 8,775,999.80/x
  3. Step 3: Cross multiply
    28,970,757.80x = 43,456,136.70 × 8,775,999.80
  4. Step 4: Simplify right side
    28,970,757.80x = 381,371,046,987,972.69
  5. Step 5: Solve for x
    x = 381,371,046,987,972.69/28,970,757.80
  6. Step 6: Final answer
    x = 13,163,999.70

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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.