Home / 823,129,410.59-1,234,936,659.67-331,589,738.98

Finding the Fourth Proportional to 823,129,410.59, 1,234,936,659.67 and 331,589,738.98

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Solution

The fourth proportional to 823,129,410.59, 1,234,936,659.67 and 331,589,738.98 is: 497,482,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,129,410.59 : 1,234,936,659.67 = 331,589,738.98 : x
  2. Step 2: Convert to fraction form
    823,129,410.59/1,234,936,659.67 = 331,589,738.98/x
  3. Step 3: Cross multiply
    823,129,410.59x = 1,234,936,659.67 × 331,589,738.98
  4. Step 4: Simplify right side
    823,129,410.59x = 409,492,324,637,523,072
  5. Step 5: Solve for x
    x = 409,492,324,637,523,072/823,129,410.59
  6. Step 6: Final answer
    x = 497,482,314.89

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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.