Home / 721,823,936.17-996,091,253.94-408,551,423.50

Finding the Fourth Proportional to 721,823,936.17, 996,091,253.94 and 408,551,423.50

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Solution

The fourth proportional to 721,823,936.17, 996,091,253.94 and 408,551,423.50 is: 563,786,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,823,936.17 : 996,091,253.94 = 408,551,423.50 : x
  2. Step 2: Convert to fraction form
    721,823,936.17/996,091,253.94 = 408,551,423.50/x
  3. Step 3: Cross multiply
    721,823,936.17x = 996,091,253.94 × 408,551,423.50
  4. Step 4: Simplify right side
    721,823,936.17x = 406,954,499,733,086,976
  5. Step 5: Solve for x
    x = 406,954,499,733,086,976/721,823,936.17
  6. Step 6: Final answer
    x = 563,786,374.13

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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.