Home / 20,234,261.70-30,351,392.55-18,108,497.70

Finding the Fourth Proportional to 20,234,261.70, 30,351,392.55 and 18,108,497.70

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Solution

The fourth proportional to 20,234,261.70, 30,351,392.55 and 18,108,497.70 is: 27,162,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234,261.70 : 30,351,392.55 = 18,108,497.70 : x
  2. Step 2: Convert to fraction form
    20,234,261.70/30,351,392.55 = 18,108,497.70/x
  3. Step 3: Cross multiply
    20,234,261.70x = 30,351,392.55 × 18,108,497.70
  4. Step 4: Simplify right side
    20,234,261.70x = 549,618,122,183,472.12
  5. Step 5: Solve for x
    x = 549,618,122,183,472.12/20,234,261.70
  6. Step 6: Final answer
    x = 27,162,746.55

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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.