Home / 9,771,128.40-14,656,692.60-8,203,486.80

Finding the Fourth Proportional to 9,771,128.40, 14,656,692.60 and 8,203,486.80

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Solution

The fourth proportional to 9,771,128.40, 14,656,692.60 and 8,203,486.80 is: 12,305,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771,128.40 : 14,656,692.60 = 8,203,486.80 : x
  2. Step 2: Convert to fraction form
    9,771,128.40/14,656,692.60 = 8,203,486.80/x
  3. Step 3: Cross multiply
    9,771,128.40x = 14,656,692.60 × 8,203,486.80
  4. Step 4: Simplify right side
    9,771,128.40x = 120,235,984,275,757.67
  5. Step 5: Solve for x
    x = 120,235,984,275,757.67/9,771,128.40
  6. Step 6: Final answer
    x = 12,305,230.20

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Similar ratio
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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.