Home / 14,485,816.20-21,731,348.70-7,279,213.80

Finding the Fourth Proportional to 14,485,816.20, 21,731,348.70 and 7,279,213.80

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Solution

The fourth proportional to 14,485,816.20, 21,731,348.70 and 7,279,213.80 is: 10,920,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485,816.20 : 21,731,348.70 = 7,279,213.80 : x
  2. Step 2: Convert to fraction form
    14,485,816.20/21,731,348.70 = 7,279,213.80/x
  3. Step 3: Cross multiply
    14,485,816.20x = 21,731,348.70 × 7,279,213.80
  4. Step 4: Simplify right side
    14,485,816.20x = 158,187,133,349,652.06
  5. Step 5: Solve for x
    x = 158,187,133,349,652.06/14,485,816.20
  6. Step 6: Final answer
    x = 10,920,139.48

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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.