Home / 81,025,915.84-121,538,873.76-27,173,072.32

Finding the Fourth Proportional to 81,025,915.84, 121,538,873.76 and 27,173,072.32

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Solution

The fourth proportional to 81,025,915.84, 121,538,873.76 and 27,173,072.32 is: 40,759,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,025,915.84 : 121,538,873.76 = 27,173,072.32 : x
  2. Step 2: Convert to fraction form
    81,025,915.84/121,538,873.76 = 27,173,072.32/x
  3. Step 3: Cross multiply
    81,025,915.84x = 121,538,873.76 × 27,173,072.32
  4. Step 4: Simplify right side
    81,025,915.84x = 3,302,584,606,371,830.50
  5. Step 5: Solve for x
    x = 3,302,584,606,371,830.50/81,025,915.84
  6. Step 6: Final answer
    x = 40,759,608.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.