Home / 20,108,218.90-30,170,201.55-7,330,015.30

Finding the Fourth Proportional to 20,108,218.90, 30,170,201.55 and 7,330,015.30

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Solution

The fourth proportional to 20,108,218.90, 30,170,201.55 and 7,330,015.30 is: 10,997,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,218.90 : 30,170,201.55 = 7,330,015.30 : x
  2. Step 2: Convert to fraction form
    20,108,218.90/30,170,201.55 = 7,330,015.30/x
  3. Step 3: Cross multiply
    20,108,218.90x = 30,170,201.55 × 7,330,015.30
  4. Step 4: Simplify right side
    20,108,218.90x = 221,148,038,965,583.72
  5. Step 5: Solve for x
    x = 221,148,038,965,583.72/20,108,218.90
  6. Step 6: Final answer
    x = 10,997,892.95

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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.