Home / 12,923,986.44-17,834,373.90-7,122,749.88

Finding the Fourth Proportional to 12,923,986.44, 17,834,373.90 and 7,122,749.88

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Solution

The fourth proportional to 12,923,986.44, 17,834,373.90 and 7,122,749.88 is: 9,828,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923,986.44 : 17,834,373.90 = 7,122,749.88 : x
  2. Step 2: Convert to fraction form
    12,923,986.44/17,834,373.90 = 7,122,749.88/x
  3. Step 3: Cross multiply
    12,923,986.44x = 17,834,373.90 × 7,122,749.88
  4. Step 4: Simplify right side
    12,923,986.44x = 127,029,784,556,100.12
  5. Step 5: Solve for x
    x = 127,029,784,556,100.12/12,923,986.44
  6. Step 6: Final answer
    x = 9,828,993.95

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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.