Home / 78,197,078.80-117,351,605.40-32,791,459.60

Finding the Fourth Proportional to 78,197,078.80, 117,351,605.40 and 32,791,459.60

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Solution

The fourth proportional to 78,197,078.80, 117,351,605.40 and 32,791,459.60 is: 49,210,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,197,078.80 : 117,351,605.40 = 32,791,459.60 : x
  2. Step 2: Convert to fraction form
    78,197,078.80/117,351,605.40 = 32,791,459.60/x
  3. Step 3: Cross multiply
    78,197,078.80x = 117,351,605.40 × 32,791,459.60
  4. Step 4: Simplify right side
    78,197,078.80x = 3,848,130,427,469,242
  5. Step 5: Solve for x
    x = 3,848,130,427,469,242/78,197,078.80
  6. Step 6: Final answer
    x = 49,210,667.28

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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.