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Finding the Fourth Proportional to 30,361,580, 45,542,413.80 and 12,410,684

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Solution

The fourth proportional to 30,361,580, 45,542,413.80 and 12,410,684 is: 18,616,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361,580 : 45,542,413.80 = 12,410,684 : x
  2. Step 2: Convert to fraction form
    30,361,580/45,542,413.80 = 12,410,684/x
  3. Step 3: Cross multiply
    30,361,580x = 45,542,413.80 × 12,410,684
  4. Step 4: Simplify right side
    30,361,580x = 565,212,506,269,039.12
  5. Step 5: Solve for x
    x = 565,212,506,269,039.12/30,361,580
  6. Step 6: Final answer
    x = 18,616,043.90

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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.