Home / 12,928,095.45-17,840,825.73-7,126,749.90

Finding the Fourth Proportional to 12,928,095.45, 17,840,825.73 and 7,126,749.90

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Solution

The fourth proportional to 12,928,095.45, 17,840,825.73 and 7,126,749.90 is: 9,834,944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,095.45 : 17,840,825.73 = 7,126,749.90 : x
  2. Step 2: Convert to fraction form
    12,928,095.45/17,840,825.73 = 7,126,749.90/x
  3. Step 3: Cross multiply
    12,928,095.45x = 17,840,825.73 × 7,126,749.90
  4. Step 4: Simplify right side
    12,928,095.45x = 127,147,102,987,194.94
  5. Step 5: Solve for x
    x = 127,147,102,987,194.94/12,928,095.45
  6. Step 6: Final answer
    x = 9,834,944.64

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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.