Home / 668,567,983.20-1,002,851,974.80-515,512,975.20

Finding the Fourth Proportional to 668,567,983.20, 1,002,851,974.80 and 515,512,975.20

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Solution

The fourth proportional to 668,567,983.20, 1,002,851,974.80 and 515,512,975.20 is: 773,269,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,567,983.20 : 1,002,851,974.80 = 515,512,975.20 : x
  2. Step 2: Convert to fraction form
    668,567,983.20/1,002,851,974.80 = 515,512,975.20/x
  3. Step 3: Cross multiply
    668,567,983.20x = 1,002,851,974.80 × 515,512,975.20
  4. Step 4: Simplify right side
    668,567,983.20x = 516,983,205,214,343,360
  5. Step 5: Solve for x
    x = 516,983,205,214,343,360/668,567,983.20
  6. Step 6: Final answer
    x = 773,269,462.80

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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.