Home / 1,679,620,223.80-2,520,690,047.70-861,311,308.60

Finding the Fourth Proportional to 1,679,620,223.80, 2,520,690,047.70 and 861,311,308.60

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Solution

The fourth proportional to 1,679,620,223.80, 2,520,690,047.70 and 861,311,308.60 is: 1,292,612,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,620,223.80 : 2,520,690,047.70 = 861,311,308.60 : x
  2. Step 2: Convert to fraction form
    1,679,620,223.80/2,520,690,047.70 = 861,311,308.60/x
  3. Step 3: Cross multiply
    1,679,620,223.80x = 2,520,690,047.70 × 861,311,308.60
  4. Step 4: Simplify right side
    1,679,620,223.80x = 2,171,098,843,559,483,392
  5. Step 5: Solve for x
    x = 2,171,098,843,559,483,392/1,679,620,223.80
  6. Step 6: Final answer
    x = 1,292,612,944.76

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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.