Home / 2,139,644.20-2,953,011.73-1,324,110.55

Finding the Fourth Proportional to 2,139,644.20, 2,953,011.73 and 1,324,110.55

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Solution

The fourth proportional to 2,139,644.20, 2,953,011.73 and 1,324,110.55 is: 1,827,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,644.20 : 2,953,011.73 = 1,324,110.55 : x
  2. Step 2: Convert to fraction form
    2,139,644.20/2,953,011.73 = 1,324,110.55/x
  3. Step 3: Cross multiply
    2,139,644.20x = 2,953,011.73 × 1,324,110.55
  4. Step 4: Simplify right side
    2,139,644.20x = 3,910,113,985,966.75
  5. Step 5: Solve for x
    x = 3,910,113,985,966.75/2,139,644.20
  6. Step 6: Final answer
    x = 1,827,459.90

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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.