Home / 171,607,128.20-257,410,692.30-90,985,560.20

Finding the Fourth Proportional to 171,607,128.20, 257,410,692.30 and 90,985,560.20

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Solution

The fourth proportional to 171,607,128.20, 257,410,692.30 and 90,985,560.20 is: 136,478,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,607,128.20 : 257,410,692.30 = 90,985,560.20 : x
  2. Step 2: Convert to fraction form
    171,607,128.20/257,410,692.30 = 90,985,560.20/x
  3. Step 3: Cross multiply
    171,607,128.20x = 257,410,692.30 × 90,985,560.20
  4. Step 4: Simplify right side
    171,607,128.20x = 23,420,656,040,385,328
  5. Step 5: Solve for x
    x = 23,420,656,040,385,328/171,607,128.20
  6. Step 6: Final answer
    x = 136,478,340.30

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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.