Home / 79,638,512.20-119,457,768.30-39,327,728.20

Finding the Fourth Proportional to 79,638,512.20, 119,457,768.30 and 39,327,728.20

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Solution

The fourth proportional to 79,638,512.20, 119,457,768.30 and 39,327,728.20 is: 58,991,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638,512.20 : 119,457,768.30 = 39,327,728.20 : x
  2. Step 2: Convert to fraction form
    79,638,512.20/119,457,768.30 = 39,327,728.20/x
  3. Step 3: Cross multiply
    79,638,512.20x = 119,457,768.30 × 39,327,728.20
  4. Step 4: Simplify right side
    79,638,512.20x = 4,698,002,643,080,976
  5. Step 5: Solve for x
    x = 4,698,002,643,080,976/79,638,512.20
  6. Step 6: Final answer
    x = 58,991,592.30

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Similar ratio
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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.