Home / 20,148,320.40-30,222,480.60-18,384,723.60

Finding the Fourth Proportional to 20,148,320.40, 30,222,480.60 and 18,384,723.60

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Solution

The fourth proportional to 20,148,320.40, 30,222,480.60 and 18,384,723.60 is: 27,577,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,320.40 : 30,222,480.60 = 18,384,723.60 : x
  2. Step 2: Convert to fraction form
    20,148,320.40/30,222,480.60 = 18,384,723.60/x
  3. Step 3: Cross multiply
    20,148,320.40x = 30,222,480.60 × 18,384,723.60
  4. Step 4: Simplify right side
    20,148,320.40x = 555,631,952,337,362.25
  5. Step 5: Solve for x
    x = 555,631,952,337,362.25/20,148,320.40
  6. Step 6: Final answer
    x = 27,577,085.40

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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.