Home / 5,180,410.40-7,767,505.20-2,660,986.40

Finding the Fourth Proportional to 5,180,410.40, 7,767,505.20 and 2,660,986.40

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Solution

The fourth proportional to 5,180,410.40, 7,767,505.20 and 2,660,986.40 is: 3,989,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,410.40 : 7,767,505.20 = 2,660,986.40 : x
  2. Step 2: Convert to fraction form
    5,180,410.40/7,767,505.20 = 2,660,986.40/x
  3. Step 3: Cross multiply
    5,180,410.40x = 7,767,505.20 × 2,660,986.40
  4. Step 4: Simplify right side
    5,180,410.40x = 20,669,225,699,129.28
  5. Step 5: Solve for x
    x = 20,669,225,699,129.28/5,180,410.40
  6. Step 6: Final answer
    x = 3,989,881.90

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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.