Home / 117,504,010.40-176,256,015.60-90,630,154.40

Finding the Fourth Proportional to 117,504,010.40, 176,256,015.60 and 90,630,154.40

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Solution

The fourth proportional to 117,504,010.40, 176,256,015.60 and 90,630,154.40 is: 135,945,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,504,010.40 : 176,256,015.60 = 90,630,154.40 : x
  2. Step 2: Convert to fraction form
    117,504,010.40/176,256,015.60 = 90,630,154.40/x
  3. Step 3: Cross multiply
    117,504,010.40x = 176,256,015.60 × 90,630,154.40
  4. Step 4: Simplify right side
    117,504,010.40x = 15,974,109,907,756,810
  5. Step 5: Solve for x
    x = 15,974,109,907,756,810/117,504,010.40
  6. Step 6: Final answer
    x = 135,945,231.60

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Similar ratio
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1.5x scale

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.