Home / 20,142,270.20-30,222,334.74-10,555,369.40

Finding the Fourth Proportional to 20,142,270.20, 30,222,334.74 and 10,555,369.40

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Solution

The fourth proportional to 20,142,270.20, 30,222,334.74 and 10,555,369.40 is: 15,837,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,270.20 : 30,222,334.74 = 10,555,369.40 : x
  2. Step 2: Convert to fraction form
    20,142,270.20/30,222,334.74 = 10,555,369.40/x
  3. Step 3: Cross multiply
    20,142,270.20x = 30,222,334.74 × 10,555,369.40
  4. Step 4: Simplify right side
    20,142,270.20x = 319,007,907,311,152.94
  5. Step 5: Solve for x
    x = 319,007,907,311,152.94/20,142,270.20
  6. Step 6: Final answer
    x = 15,837,733.49

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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.