Home / 12,165,507.40-16,789,179.54-7,008,775.24

Finding the Fourth Proportional to 12,165,507.40, 16,789,179.54 and 7,008,775.24

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Solution

The fourth proportional to 12,165,507.40, 16,789,179.54 and 7,008,775.24 is: 9,672,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,507.40 : 16,789,179.54 = 7,008,775.24 : x
  2. Step 2: Convert to fraction form
    12,165,507.40/16,789,179.54 = 7,008,775.24/x
  3. Step 3: Cross multiply
    12,165,507.40x = 16,789,179.54 × 7,008,775.24
  4. Step 4: Simplify right side
    12,165,507.40x = 117,671,585,859,866.59
  5. Step 5: Solve for x
    x = 117,671,585,859,866.59/12,165,507.40
  6. Step 6: Final answer
    x = 9,672,558.82

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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.