Home / 128,304,840.60-192,457,260.90-127,171,099.80

Finding the Fourth Proportional to 128,304,840.60, 192,457,260.90 and 127,171,099.80

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Solution

The fourth proportional to 128,304,840.60, 192,457,260.90 and 127,171,099.80 is: 190,756,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,840.60 : 192,457,260.90 = 127,171,099.80 : x
  2. Step 2: Convert to fraction form
    128,304,840.60/192,457,260.90 = 127,171,099.80/x
  3. Step 3: Cross multiply
    128,304,840.60x = 192,457,260.90 × 127,171,099.80
  4. Step 4: Simplify right side
    128,304,840.60x = 24,475,001,533,148,540
  5. Step 5: Solve for x
    x = 24,475,001,533,148,540/128,304,840.60
  6. Step 6: Final answer
    x = 190,756,649.70

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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.