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Finding the Fourth Proportional to 15,671,438.88, 21,626,745.84 and 8,795,783.04

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Solution

The fourth proportional to 15,671,438.88, 21,626,745.84 and 8,795,783.04 is: 12,138,270.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671,438.88 : 21,626,745.84 = 8,795,783.04 : x
  2. Step 2: Convert to fraction form
    15,671,438.88/21,626,745.84 = 8,795,783.04/x
  3. Step 3: Cross multiply
    15,671,438.88x = 21,626,745.84 × 8,795,783.04
  4. Step 4: Simplify right side
    15,671,438.88x = 190,224,164,269,862.53
  5. Step 5: Solve for x
    x = 190,224,164,269,862.53/15,671,438.88
  6. Step 6: Final answer
    x = 12,138,270.50

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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.