Home / 13,145,364-18,140,478.48-7,345,144.80

Finding the Fourth Proportional to 13,145,364, 18,140,478.48 and 7,345,144.80

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Solution

The fourth proportional to 13,145,364, 18,140,478.48 and 7,345,144.80 is: 10,136,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,364 : 18,140,478.48 = 7,345,144.80 : x
  2. Step 2: Convert to fraction form
    13,145,364/18,140,478.48 = 7,345,144.80/x
  3. Step 3: Cross multiply
    13,145,364x = 18,140,478.48 × 7,345,144.80
  4. Step 4: Simplify right side
    13,145,364x = 133,244,441,176,883.91
  5. Step 5: Solve for x
    x = 133,244,441,176,883.91/13,145,364
  6. Step 6: Final answer
    x = 10,136,230.63

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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.