Home / 2,752,415.40-4,128,623.10-2,642,190.60

Finding the Fourth Proportional to 2,752,415.40, 4,128,623.10 and 2,642,190.60

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Solution

The fourth proportional to 2,752,415.40, 4,128,623.10 and 2,642,190.60 is: 3,963,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752,415.40 : 4,128,623.10 = 2,642,190.60 : x
  2. Step 2: Convert to fraction form
    2,752,415.40/4,128,623.10 = 2,642,190.60/x
  3. Step 3: Cross multiply
    2,752,415.40x = 4,128,623.10 × 2,642,190.60
  4. Step 4: Simplify right side
    2,752,415.40x = 10,908,609,145,762.86
  5. Step 5: Solve for x
    x = 10,908,609,145,762.86/2,752,415.40
  6. Step 6: Final answer
    x = 3,963,285.90

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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.