Home / 721,823,670.23-996,090,889.66-408,551,156.33

Finding the Fourth Proportional to 721,823,670.23, 996,090,889.66 and 408,551,156.33

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Solution

The fourth proportional to 721,823,670.23, 996,090,889.66 and 408,551,156.33 is: 563,786,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,823,670.23 : 996,090,889.66 = 408,551,156.33 : x
  2. Step 2: Convert to fraction form
    721,823,670.23/996,090,889.66 = 408,551,156.33/x
  3. Step 3: Cross multiply
    721,823,670.23x = 996,090,889.66 × 408,551,156.33
  4. Step 4: Simplify right side
    721,823,670.23x = 406,954,084,774,369,600
  5. Step 5: Solve for x
    x = 406,954,084,774,369,600/721,823,670.23
  6. Step 6: Final answer
    x = 563,786,006.97

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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.