Home / 20,125,973.40-30,188,960.10-4,979,904.90

Finding the Fourth Proportional to 20,125,973.40, 30,188,960.10 and 4,979,904.90

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Solution

The fourth proportional to 20,125,973.40, 30,188,960.10 and 4,979,904.90 is: 7,469,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125,973.40 : 30,188,960.10 = 4,979,904.90 : x
  2. Step 2: Convert to fraction form
    20,125,973.40/30,188,960.10 = 4,979,904.90/x
  3. Step 3: Cross multiply
    20,125,973.40x = 30,188,960.10 × 4,979,904.90
  4. Step 4: Simplify right side
    20,125,973.40x = 150,338,150,327,894.50
  5. Step 5: Solve for x
    x = 150,338,150,327,894.50/20,125,973.40
  6. Step 6: Final answer
    x = 7,469,857.35

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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.