Home / 20,128,272.60-30,192,408.90-17,010,485.40

Finding the Fourth Proportional to 20,128,272.60, 30,192,408.90 and 17,010,485.40

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Solution

The fourth proportional to 20,128,272.60, 30,192,408.90 and 17,010,485.40 is: 25,515,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,272.60 : 30,192,408.90 = 17,010,485.40 : x
  2. Step 2: Convert to fraction form
    20,128,272.60/30,192,408.90 = 17,010,485.40/x
  3. Step 3: Cross multiply
    20,128,272.60x = 30,192,408.90 × 17,010,485.40
  4. Step 4: Simplify right side
    20,128,272.60x = 513,587,530,784,280
  5. Step 5: Solve for x
    x = 513,587,530,784,280/20,128,272.60
  6. Step 6: Final answer
    x = 25,515,728.10

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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.