Home / 90,658,955.36-125,106,180.72-49,405,005.92

Finding the Fourth Proportional to 90,658,955.36, 125,106,180.72 and 49,405,005.92

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Solution

The fourth proportional to 90,658,955.36, 125,106,180.72 and 49,405,005.92 is: 68,177,176.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658,955.36 : 125,106,180.72 = 49,405,005.92 : x
  2. Step 2: Convert to fraction form
    90,658,955.36/125,106,180.72 = 49,405,005.92/x
  3. Step 3: Cross multiply
    90,658,955.36x = 125,106,180.72 × 49,405,005.92
  4. Step 4: Simplify right side
    90,658,955.36x = 6,180,871,599,100,190
  5. Step 5: Solve for x
    x = 6,180,871,599,100,190/90,658,955.36
  6. Step 6: Final answer
    x = 68,177,176.48

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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.