Home / 127,008,006.80-190,512,010.20-126,112,211.60

Finding the Fourth Proportional to 127,008,006.80, 190,512,010.20 and 126,112,211.60

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Solution

The fourth proportional to 127,008,006.80, 190,512,010.20 and 126,112,211.60 is: 189,168,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,008,006.80 : 190,512,010.20 = 126,112,211.60 : x
  2. Step 2: Convert to fraction form
    127,008,006.80/190,512,010.20 = 126,112,211.60/x
  3. Step 3: Cross multiply
    127,008,006.80x = 190,512,010.20 × 126,112,211.60
  4. Step 4: Simplify right side
    127,008,006.80x = 24,025,890,942,683,756
  5. Step 5: Solve for x
    x = 24,025,890,942,683,756/127,008,006.80
  6. Step 6: Final answer
    x = 189,168,317.40

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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.