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Finding the Fourth Proportional to 8,447,713.20, 12,671,569.80 and 3,652,059.60

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Solution

The fourth proportional to 8,447,713.20, 12,671,569.80 and 3,652,059.60 is: 5,478,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447,713.20 : 12,671,569.80 = 3,652,059.60 : x
  2. Step 2: Convert to fraction form
    8,447,713.20/12,671,569.80 = 3,652,059.60/x
  3. Step 3: Cross multiply
    8,447,713.20x = 12,671,569.80 × 3,652,059.60
  4. Step 4: Simplify right side
    8,447,713.20x = 46,277,328,135,160.09
  5. Step 5: Solve for x
    x = 46,277,328,135,160.09/8,447,713.20
  6. Step 6: Final answer
    x = 5,478,089.40

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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.