Home / 20,630,130.80-30,945,196.20-5,277,390.80

Finding the Fourth Proportional to 20,630,130.80, 30,945,196.20 and 5,277,390.80

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Solution

The fourth proportional to 20,630,130.80, 30,945,196.20 and 5,277,390.80 is: 7,916,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,130.80 : 30,945,196.20 = 5,277,390.80 : x
  2. Step 2: Convert to fraction form
    20,630,130.80/30,945,196.20 = 5,277,390.80/x
  3. Step 3: Cross multiply
    20,630,130.80x = 30,945,196.20 × 5,277,390.80
  4. Step 4: Simplify right side
    20,630,130.80x = 163,309,893,730,074.94
  5. Step 5: Solve for x
    x = 163,309,893,730,074.94/20,630,130.80
  6. Step 6: Final answer
    x = 7,916,086.20

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Double scale
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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.