Home / 117,542,621.40-176,313,932.10-85,126,032.60

Finding the Fourth Proportional to 117,542,621.40, 176,313,932.10 and 85,126,032.60

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Solution

The fourth proportional to 117,542,621.40, 176,313,932.10 and 85,126,032.60 is: 127,689,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,542,621.40 : 176,313,932.10 = 85,126,032.60 : x
  2. Step 2: Convert to fraction form
    117,542,621.40/176,313,932.10 = 85,126,032.60/x
  3. Step 3: Cross multiply
    117,542,621.40x = 176,313,932.10 × 85,126,032.60
  4. Step 4: Simplify right side
    117,542,621.40x = 15,008,905,531,778,784
  5. Step 5: Solve for x
    x = 15,008,905,531,778,784/117,542,621.40
  6. Step 6: Final answer
    x = 127,689,048.90

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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.