Home / 8,085,692.10-12,128,538.15-4,042,803.90

Finding the Fourth Proportional to 8,085,692.10, 12,128,538.15 and 4,042,803.90

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Solution

The fourth proportional to 8,085,692.10, 12,128,538.15 and 4,042,803.90 is: 6,064,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,692.10 : 12,128,538.15 = 4,042,803.90 : x
  2. Step 2: Convert to fraction form
    8,085,692.10/12,128,538.15 = 4,042,803.90/x
  3. Step 3: Cross multiply
    8,085,692.10x = 12,128,538.15 × 4,042,803.90
  4. Step 4: Simplify right side
    8,085,692.10x = 49,033,301,334,118.79
  5. Step 5: Solve for x
    x = 49,033,301,334,118.79/8,085,692.10
  6. Step 6: Final answer
    x = 6,064,205.85

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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.