Home / 9,217,212.35-12,719,745.09-5,142,831.35

Finding the Fourth Proportional to 9,217,212.35, 12,719,745.09 and 5,142,831.35

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Solution

The fourth proportional to 9,217,212.35, 12,719,745.09 and 5,142,831.35 is: 7,097,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217,212.35 : 12,719,745.09 = 5,142,831.35 : x
  2. Step 2: Convert to fraction form
    9,217,212.35/12,719,745.09 = 5,142,831.35/x
  3. Step 3: Cross multiply
    9,217,212.35x = 12,719,745.09 × 5,142,831.35
  4. Step 4: Simplify right side
    9,217,212.35x = 65,415,503,749,261.84
  5. Step 5: Solve for x
    x = 65,415,503,749,261.84/9,217,212.35
  6. Step 6: Final answer
    x = 7,097,102.82

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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.