Home / 12,219,008.10-18,328,512.15-3,699,768.30

Finding the Fourth Proportional to 12,219,008.10, 18,328,512.15 and 3,699,768.30

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Solution

The fourth proportional to 12,219,008.10, 18,328,512.15 and 3,699,768.30 is: 5,549,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,008.10 : 18,328,512.15 = 3,699,768.30 : x
  2. Step 2: Convert to fraction form
    12,219,008.10/18,328,512.15 = 3,699,768.30/x
  3. Step 3: Cross multiply
    12,219,008.10x = 18,328,512.15 × 3,699,768.30
  4. Step 4: Simplify right side
    12,219,008.10x = 67,811,248,238,734.84
  5. Step 5: Solve for x
    x = 67,811,248,238,734.84/12,219,008.10
  6. Step 6: Final answer
    x = 5,549,652.45

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Double scale
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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.