Home / 78,227,438.40-117,294,501.60-47,957,025.60

Finding the Fourth Proportional to 78,227,438.40, 117,294,501.60 and 47,957,025.60

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Solution

The fourth proportional to 78,227,438.40, 117,294,501.60 and 47,957,025.60 is: 71,906,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,227,438.40 : 117,294,501.60 = 47,957,025.60 : x
  2. Step 2: Convert to fraction form
    78,227,438.40/117,294,501.60 = 47,957,025.60/x
  3. Step 3: Cross multiply
    78,227,438.40x = 117,294,501.60 × 47,957,025.60
  4. Step 4: Simplify right side
    78,227,438.40x = 5,625,095,415,970,441
  5. Step 5: Solve for x
    x = 5,625,095,415,970,441/78,227,438.40
  6. Step 6: Final answer
    x = 71,906,936.12

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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.