Home / 721,823,935.17-996,091,252.56-408,551,422.50

Finding the Fourth Proportional to 721,823,935.17, 996,091,252.56 and 408,551,422.50

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Solution

The fourth proportional to 721,823,935.17, 996,091,252.56 and 408,551,422.50 is: 563,786,372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,823,935.17 : 996,091,252.56 = 408,551,422.50 : x
  2. Step 2: Convert to fraction form
    721,823,935.17/996,091,252.56 = 408,551,422.50/x
  3. Step 3: Cross multiply
    721,823,935.17x = 996,091,252.56 × 408,551,422.50
  4. Step 4: Simplify right side
    721,823,935.17x = 406,954,498,173,194,752
  5. Step 5: Solve for x
    x = 406,954,498,173,194,752/721,823,935.17
  6. Step 6: Final answer
    x = 563,786,372.75

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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.