Home / 100,890,109.20-151,335,163.80-28,118,121.60

Finding the Fourth Proportional to 100,890,109.20, 151,335,163.80 and 28,118,121.60

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Solution

The fourth proportional to 100,890,109.20, 151,335,163.80 and 28,118,121.60 is: 42,177,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,109.20 : 151,335,163.80 = 28,118,121.60 : x
  2. Step 2: Convert to fraction form
    100,890,109.20/151,335,163.80 = 28,118,121.60/x
  3. Step 3: Cross multiply
    100,890,109.20x = 151,335,163.80 × 28,118,121.60
  4. Step 4: Simplify right side
    100,890,109.20x = 4,255,260,538,084,318.50
  5. Step 5: Solve for x
    x = 4,255,260,538,084,318.50/100,890,109.20
  6. Step 6: Final answer
    x = 42,177,182.40

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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.