Home / 128,313,232.40-192,469,848.60-42,030,833.60

Finding the Fourth Proportional to 128,313,232.40, 192,469,848.60 and 42,030,833.60

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Solution

The fourth proportional to 128,313,232.40, 192,469,848.60 and 42,030,833.60 is: 63,046,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,313,232.40 : 192,469,848.60 = 42,030,833.60 : x
  2. Step 2: Convert to fraction form
    128,313,232.40/192,469,848.60 = 42,030,833.60/x
  3. Step 3: Cross multiply
    128,313,232.40x = 192,469,848.60 × 42,030,833.60
  4. Step 4: Simplify right side
    128,313,232.40x = 8,089,668,179,523,793
  5. Step 5: Solve for x
    x = 8,089,668,179,523,793/128,313,232.40
  6. Step 6: Final answer
    x = 63,046,250.40

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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.