Home / 12,905,277.08-17,809,921.80-7,103,997.14

Finding the Fourth Proportional to 12,905,277.08, 17,809,921.80 and 7,103,997.14

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Solution

The fourth proportional to 12,905,277.08, 17,809,921.80 and 7,103,997.14 is: 9,803,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,277.08 : 17,809,921.80 = 7,103,997.14 : x
  2. Step 2: Convert to fraction form
    12,905,277.08/17,809,921.80 = 7,103,997.14/x
  3. Step 3: Cross multiply
    12,905,277.08x = 17,809,921.80 × 7,103,997.14
  4. Step 4: Simplify right side
    12,905,277.08x = 126,521,633,441,774.05
  5. Step 5: Solve for x
    x = 126,521,633,441,774.05/12,905,277.08
  6. Step 6: Final answer
    x = 9,803,868.04

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1.5x scale

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.