Home / 12,106,842.72-16,697,989.80-7,756,330.56

Finding the Fourth Proportional to 12,106,842.72, 16,697,989.80 and 7,756,330.56

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Solution

The fourth proportional to 12,106,842.72, 16,697,989.80 and 7,756,330.56 is: 10,697,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106,842.72 : 16,697,989.80 = 7,756,330.56 : x
  2. Step 2: Convert to fraction form
    12,106,842.72/16,697,989.80 = 7,756,330.56/x
  3. Step 3: Cross multiply
    12,106,842.72x = 16,697,989.80 × 7,756,330.56
  4. Step 4: Simplify right side
    12,106,842.72x = 129,515,128,576,308.28
  5. Step 5: Solve for x
    x = 129,515,128,576,308.28/12,106,842.72
  6. Step 6: Final answer
    x = 10,697,679.95

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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.