Home / 2,660,746.40-3,991,119.60-1,810,440.80

Finding the Fourth Proportional to 2,660,746.40, 3,991,119.60 and 1,810,440.80

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Solution

The fourth proportional to 2,660,746.40, 3,991,119.60 and 1,810,440.80 is: 2,715,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,746.40 : 3,991,119.60 = 1,810,440.80 : x
  2. Step 2: Convert to fraction form
    2,660,746.40/3,991,119.60 = 1,810,440.80/x
  3. Step 3: Cross multiply
    2,660,746.40x = 3,991,119.60 × 1,810,440.80
  4. Step 4: Simplify right side
    2,660,746.40x = 7,225,685,761,519.68
  5. Step 5: Solve for x
    x = 7,225,685,761,519.68/2,660,746.40
  6. Step 6: Final answer
    x = 2,715,661.20

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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.