Home / 1,679,624,194.80-2,520,696,004.20-861,315,279.60

Finding the Fourth Proportional to 1,679,624,194.80, 2,520,696,004.20 and 861,315,279.60

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Solution

The fourth proportional to 1,679,624,194.80, 2,520,696,004.20 and 861,315,279.60 is: 1,292,618,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,624,194.80 : 2,520,696,004.20 = 861,315,279.60 : x
  2. Step 2: Convert to fraction form
    1,679,624,194.80/2,520,696,004.20 = 861,315,279.60/x
  3. Step 3: Cross multiply
    1,679,624,194.80x = 2,520,696,004.20 × 861,315,279.60
  4. Step 4: Simplify right side
    1,679,624,194.80x = 2,171,113,983,644,125,696
  5. Step 5: Solve for x
    x = 2,171,113,983,644,125,696/1,679,624,194.80
  6. Step 6: Final answer
    x = 1,292,618,902.71

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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.