Home / 823,129,411.59-1,234,936,661.17-331,589,739.98

Finding the Fourth Proportional to 823,129,411.59, 1,234,936,661.17 and 331,589,739.98

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Solution

The fourth proportional to 823,129,411.59, 1,234,936,661.17 and 331,589,739.98 is: 497,482,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,129,411.59 : 1,234,936,661.17 = 331,589,739.98 : x
  2. Step 2: Convert to fraction form
    823,129,411.59/1,234,936,661.17 = 331,589,739.98/x
  3. Step 3: Cross multiply
    823,129,411.59x = 1,234,936,661.17 × 331,589,739.98
  4. Step 4: Simplify right side
    823,129,411.59x = 409,492,326,369,129,728
  5. Step 5: Solve for x
    x = 409,492,326,369,129,728/823,129,411.59
  6. Step 6: Final answer
    x = 497,482,316.39

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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.