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Finding the Fourth Proportional to 8,984,728.80, 13,467,907.80 and 4,428,770.40

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Solution

The fourth proportional to 8,984,728.80, 13,467,907.80 and 4,428,770.40 is: 6,638,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984,728.80 : 13,467,907.80 = 4,428,770.40 : x
  2. Step 2: Convert to fraction form
    8,984,728.80/13,467,907.80 = 4,428,770.40/x
  3. Step 3: Cross multiply
    8,984,728.80x = 13,467,907.80 × 4,428,770.40
  4. Step 4: Simplify right side
    8,984,728.80x = 59,646,271,414,569.12
  5. Step 5: Solve for x
    x = 59,646,271,414,569.12/8,984,728.80
  6. Step 6: Final answer
    x = 6,638,627.91

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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.