Home / 12,756,810.11-19,135,291.28-3,172,188.64

Finding the Fourth Proportional to 12,756,810.11, 19,135,291.28 and 3,172,188.64

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Solution

The fourth proportional to 12,756,810.11, 19,135,291.28 and 3,172,188.64 is: 4,758,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,810.11 : 19,135,291.28 = 3,172,188.64 : x
  2. Step 2: Convert to fraction form
    12,756,810.11/19,135,291.28 = 3,172,188.64/x
  3. Step 3: Cross multiply
    12,756,810.11x = 19,135,291.28 × 3,172,188.64
  4. Step 4: Simplify right side
    12,756,810.11x = 60,700,753,624,913.58
  5. Step 5: Solve for x
    x = 60,700,753,624,913.58/12,756,810.11
  6. Step 6: Final answer
    x = 4,758,301.89

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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.