Home / 7,128,133.70-10,692,610.15-2,080,223.30

Finding the Fourth Proportional to 7,128,133.70, 10,692,610.15 and 2,080,223.30

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Solution

The fourth proportional to 7,128,133.70, 10,692,610.15 and 2,080,223.30 is: 3,120,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,133.70 : 10,692,610.15 = 2,080,223.30 : x
  2. Step 2: Convert to fraction form
    7,128,133.70/10,692,610.15 = 2,080,223.30/x
  3. Step 3: Cross multiply
    7,128,133.70x = 10,692,610.15 × 2,080,223.30
  4. Step 4: Simplify right side
    7,128,133.70x = 22,243,016,771,846.50
  5. Step 5: Solve for x
    x = 22,243,016,771,846.50/7,128,133.70
  6. Step 6: Final answer
    x = 3,120,454.48

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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.