Home / 15,066,429.36-20,791,909.20-8,190,937.68

Finding the Fourth Proportional to 15,066,429.36, 20,791,909.20 and 8,190,937.68

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Solution

The fourth proportional to 15,066,429.36, 20,791,909.20 and 8,190,937.68 is: 11,303,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066,429.36 : 20,791,909.20 = 8,190,937.68 : x
  2. Step 2: Convert to fraction form
    15,066,429.36/20,791,909.20 = 8,190,937.68/x
  3. Step 3: Cross multiply
    15,066,429.36x = 20,791,909.20 × 8,190,937.68
  4. Step 4: Simplify right side
    15,066,429.36x = 170,305,232,505,418.66
  5. Step 5: Solve for x
    x = 170,305,232,505,418.66/15,066,429.36
  6. Step 6: Final answer
    x = 11,303,622.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.