Home / 38,243,520.39-52,775,765.96-20,839,811.79

Finding the Fourth Proportional to 38,243,520.39, 52,775,765.96 and 20,839,811.79

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Solution

The fourth proportional to 38,243,520.39, 52,775,765.96 and 20,839,811.79 is: 28,758,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,243,520.39 : 52,775,765.96 = 20,839,811.79 : x
  2. Step 2: Convert to fraction form
    38,243,520.39/52,775,765.96 = 20,839,811.79/x
  3. Step 3: Cross multiply
    38,243,520.39x = 52,775,765.96 × 20,839,811.79
  4. Step 4: Simplify right side
    38,243,520.39x = 1,099,837,029,575,289.50
  5. Step 5: Solve for x
    x = 1,099,837,029,575,289.50/38,243,520.39
  6. Step 6: Final answer
    x = 28,758,781.05

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Double scale
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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.