Home / 2,166,619.02-2,989,897.82-1,199,728.55

Finding the Fourth Proportional to 2,166,619.02, 2,989,897.82 and 1,199,728.55

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Solution

The fourth proportional to 2,166,619.02, 2,989,897.82 and 1,199,728.55 is: 1,655,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,619.02 : 2,989,897.82 = 1,199,728.55 : x
  2. Step 2: Convert to fraction form
    2,166,619.02/2,989,897.82 = 1,199,728.55/x
  3. Step 3: Cross multiply
    2,166,619.02x = 2,989,897.82 × 1,199,728.55
  4. Step 4: Simplify right side
    2,166,619.02x = 3,587,065,782,211.85
  5. Step 5: Solve for x
    x = 3,587,065,782,211.85/2,166,619.02
  6. Step 6: Final answer
    x = 1,655,605.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.