Home / 7,128,002.80-10,692,004.20-4,388,129.20

Finding the Fourth Proportional to 7,128,002.80, 10,692,004.20 and 4,388,129.20

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Solution

The fourth proportional to 7,128,002.80, 10,692,004.20 and 4,388,129.20 is: 6,582,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,002.80 : 10,692,004.20 = 4,388,129.20 : x
  2. Step 2: Convert to fraction form
    7,128,002.80/10,692,004.20 = 4,388,129.20/x
  3. Step 3: Cross multiply
    7,128,002.80x = 10,692,004.20 × 4,388,129.20
  4. Step 4: Simplify right side
    7,128,002.80x = 46,917,895,836,542.64
  5. Step 5: Solve for x
    x = 46,917,895,836,542.64/7,128,002.80
  6. Step 6: Final answer
    x = 6,582,193.80

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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.