Home / 15,300,115.50-21,114,623.90-8,424,843.60

Finding the Fourth Proportional to 15,300,115.50, 21,114,623.90 and 8,424,843.60

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Solution

The fourth proportional to 15,300,115.50, 21,114,623.90 and 8,424,843.60 is: 11,626,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300,115.50 : 21,114,623.90 = 8,424,843.60 : x
  2. Step 2: Convert to fraction form
    15,300,115.50/21,114,623.90 = 8,424,843.60/x
  3. Step 3: Cross multiply
    15,300,115.50x = 21,114,623.90 × 8,424,843.60
  4. Step 4: Simplify right side
    15,300,115.50x = 177,887,404,030,322.03
  5. Step 5: Solve for x
    x = 177,887,404,030,322.03/15,300,115.50
  6. Step 6: Final answer
    x = 11,626,539.95

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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.