Home / 20,342,311.15-30,513,466.73-13,528,056.55

Finding the Fourth Proportional to 20,342,311.15, 30,513,466.73 and 13,528,056.55

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Solution

The fourth proportional to 20,342,311.15, 30,513,466.73 and 13,528,056.55 is: 20,292,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,311.15 : 30,513,466.73 = 13,528,056.55 : x
  2. Step 2: Convert to fraction form
    20,342,311.15/30,513,466.73 = 13,528,056.55/x
  3. Step 3: Cross multiply
    20,342,311.15x = 30,513,466.73 × 13,528,056.55
  4. Step 4: Simplify right side
    20,342,311.15x = 412,787,903,459,983.62
  5. Step 5: Solve for x
    x = 412,787,903,459,983.62/20,342,311.15
  6. Step 6: Final answer
    x = 20,292,084.83

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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.