Home / 985,998,664.20-1,478,997,996.30-576,844,206.60

Finding the Fourth Proportional to 985,998,664.20, 1,478,997,996.30 and 576,844,206.60

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Solution

The fourth proportional to 985,998,664.20, 1,478,997,996.30 and 576,844,206.60 is: 865,266,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,998,664.20 : 1,478,997,996.30 = 576,844,206.60 : x
  2. Step 2: Convert to fraction form
    985,998,664.20/1,478,997,996.30 = 576,844,206.60/x
  3. Step 3: Cross multiply
    985,998,664.20x = 1,478,997,996.30 × 576,844,206.60
  4. Step 4: Simplify right side
    985,998,664.20x = 853,151,425,738,663,296
  5. Step 5: Solve for x
    x = 853,151,425,738,663,296/985,998,664.20
  6. Step 6: Final answer
    x = 865,266,309.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.