Home / 690,222,797.76-952,530,963.36-408,206,988.12

Finding the Fourth Proportional to 690,222,797.76, 952,530,963.36 and 408,206,988.12

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Solution

The fourth proportional to 690,222,797.76, 952,530,963.36 and 408,206,988.12 is: 563,339,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,222,797.76 : 952,530,963.36 = 408,206,988.12 : x
  2. Step 2: Convert to fraction form
    690,222,797.76/952,530,963.36 = 408,206,988.12/x
  3. Step 3: Cross multiply
    690,222,797.76x = 952,530,963.36 × 408,206,988.12
  4. Step 4: Simplify right side
    690,222,797.76x = 388,829,795,644,227,712
  5. Step 5: Solve for x
    x = 388,829,795,644,227,712/690,222,797.76
  6. Step 6: Final answer
    x = 563,339,543.27

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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.