Home / 202,258,778.40-279,014,285.88-122,852,709.36

Finding the Fourth Proportional to 202,258,778.40, 279,014,285.88 and 122,852,709.36

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Solution

The fourth proportional to 202,258,778.40, 279,014,285.88 and 122,852,709.36 is: 169,474,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,258,778.40 : 279,014,285.88 = 122,852,709.36 : x
  2. Step 2: Convert to fraction form
    202,258,778.40/279,014,285.88 = 122,852,709.36/x
  3. Step 3: Cross multiply
    202,258,778.40x = 279,014,285.88 × 122,852,709.36
  4. Step 4: Simplify right side
    202,258,778.40x = 34,277,660,970,503,592
  5. Step 5: Solve for x
    x = 34,277,660,970,503,592/202,258,778.40
  6. Step 6: Final answer
    x = 169,474,280.63

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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.