Home / 668,567,977.20-1,002,851,965.80-515,512,969.20

Finding the Fourth Proportional to 668,567,977.20, 1,002,851,965.80 and 515,512,969.20

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Solution

The fourth proportional to 668,567,977.20, 1,002,851,965.80 and 515,512,969.20 is: 773,269,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,567,977.20 : 1,002,851,965.80 = 515,512,969.20 : x
  2. Step 2: Convert to fraction form
    668,567,977.20/1,002,851,965.80 = 515,512,969.20/x
  3. Step 3: Cross multiply
    668,567,977.20x = 1,002,851,965.80 × 515,512,969.20
  4. Step 4: Simplify right side
    668,567,977.20x = 516,983,194,557,614,848
  5. Step 5: Solve for x
    x = 516,983,194,557,614,848/668,567,977.20
  6. Step 6: Final answer
    x = 773,269,453.80

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1.5x scale

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.