Home / 2,166,289.75-2,989,500.20-1,199,440.77

Finding the Fourth Proportional to 2,166,289.75, 2,989,500.20 and 1,199,440.77

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Solution

The fourth proportional to 2,166,289.75, 2,989,500.20 and 1,199,440.77 is: 1,655,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,289.75 : 2,989,500.20 = 1,199,440.77 : x
  2. Step 2: Convert to fraction form
    2,166,289.75/2,989,500.20 = 1,199,440.77/x
  3. Step 3: Cross multiply
    2,166,289.75x = 2,989,500.20 × 1,199,440.77
  4. Step 4: Simplify right side
    2,166,289.75x = 3,585,728,421,803.15
  5. Step 5: Solve for x
    x = 3,585,728,421,803.15/2,166,289.75
  6. Step 6: Final answer
    x = 1,655,239.53

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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.