Home / 876,588,392.22-1,209,711,562.92-500,237,487.12

Finding the Fourth Proportional to 876,588,392.22, 1,209,711,562.92 and 500,237,487.12

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Solution

The fourth proportional to 876,588,392.22, 1,209,711,562.92 and 500,237,487.12 is: 690,338,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,588,392.22 : 1,209,711,562.92 = 500,237,487.12 : x
  2. Step 2: Convert to fraction form
    876,588,392.22/1,209,711,562.92 = 500,237,487.12/x
  3. Step 3: Cross multiply
    876,588,392.22x = 1,209,711,562.92 × 500,237,487.12
  4. Step 4: Simplify right side
    876,588,392.22x = 605,143,072,375,108,608
  5. Step 5: Solve for x
    x = 605,143,072,375,108,608/876,588,392.22
  6. Step 6: Final answer
    x = 690,338,906.77

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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.