Home / 15,300,122.52-21,114,633.54-8,424,850.62

Finding the Fourth Proportional to 15,300,122.52, 21,114,633.54 and 8,424,850.62

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Solution

The fourth proportional to 15,300,122.52, 21,114,633.54 and 8,424,850.62 is: 11,626,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300,122.52 : 21,114,633.54 = 8,424,850.62 : x
  2. Step 2: Convert to fraction form
    15,300,122.52/21,114,633.54 = 8,424,850.62/x
  3. Step 3: Cross multiply
    15,300,122.52x = 21,114,633.54 × 8,424,850.62
  4. Step 4: Simplify right side
    15,300,122.52x = 177,887,633,470,541.78
  5. Step 5: Solve for x
    x = 177,887,633,470,541.78/15,300,122.52
  6. Step 6: Final answer
    x = 11,626,549.61

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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.