Home / 12,455,438.10-18,683,157.15-8,200,410.90

Finding the Fourth Proportional to 12,455,438.10, 18,683,157.15 and 8,200,410.90

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Solution

The fourth proportional to 12,455,438.10, 18,683,157.15 and 8,200,410.90 is: 12,300,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,438.10 : 18,683,157.15 = 8,200,410.90 : x
  2. Step 2: Convert to fraction form
    12,455,438.10/18,683,157.15 = 8,200,410.90/x
  3. Step 3: Cross multiply
    12,455,438.10x = 18,683,157.15 × 8,200,410.90
  4. Step 4: Simplify right side
    12,455,438.10x = 153,209,565,539,272.94
  5. Step 5: Solve for x
    x = 153,209,565,539,272.94/12,455,438.10
  6. Step 6: Final answer
    x = 12,300,616.35

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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.