Home / 122,485,788.80-183,728,683.20-45,792,947.60

Finding the Fourth Proportional to 122,485,788.80, 183,728,683.20 and 45,792,947.60

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Solution

The fourth proportional to 122,485,788.80, 183,728,683.20 and 45,792,947.60 is: 68,689,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,485,788.80 : 183,728,683.20 = 45,792,947.60 : x
  2. Step 2: Convert to fraction form
    122,485,788.80/183,728,683.20 = 45,792,947.60/x
  3. Step 3: Cross multiply
    122,485,788.80x = 183,728,683.20 × 45,792,947.60
  4. Step 4: Simplify right side
    122,485,788.80x = 8,413,477,962,394,600
  5. Step 5: Solve for x
    x = 8,413,477,962,394,600/122,485,788.80
  6. Step 6: Final answer
    x = 68,689,421.40

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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.