Home / 78,495,358.20-108,325,720.08-43,691,877.60

Finding the Fourth Proportional to 78,495,358.20, 108,325,720.08 and 43,691,877.60

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Solution

The fourth proportional to 78,495,358.20, 108,325,720.08 and 43,691,877.60 is: 60,295,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,495,358.20 : 108,325,720.08 = 43,691,877.60 : x
  2. Step 2: Convert to fraction form
    78,495,358.20/108,325,720.08 = 43,691,877.60/x
  3. Step 3: Cross multiply
    78,495,358.20x = 108,325,720.08 × 43,691,877.60
  4. Step 4: Simplify right side
    78,495,358.20x = 4,732,954,102,667,222
  5. Step 5: Solve for x
    x = 4,732,954,102,667,222/78,495,358.20
  6. Step 6: Final answer
    x = 60,295,974.33

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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.