Home / 2,172,861.18-2,998,525.77-1,205,999.82

Finding the Fourth Proportional to 2,172,861.18, 2,998,525.77 and 1,205,999.82

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Solution

The fourth proportional to 2,172,861.18, 2,998,525.77 and 1,205,999.82 is: 1,664,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,861.18 : 2,998,525.77 = 1,205,999.82 : x
  2. Step 2: Convert to fraction form
    2,172,861.18/2,998,525.77 = 1,205,999.82/x
  3. Step 3: Cross multiply
    2,172,861.18x = 2,998,525.77 × 1,205,999.82
  4. Step 4: Simplify right side
    2,172,861.18x = 3,616,221,538,885.36
  5. Step 5: Solve for x
    x = 3,616,221,538,885.36/2,172,861.18
  6. Step 6: Final answer
    x = 1,664,267.18

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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.