Home / 128,304,838.60-192,457,257.90-127,171,097.80

Finding the Fourth Proportional to 128,304,838.60, 192,457,257.90 and 127,171,097.80

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Solution

The fourth proportional to 128,304,838.60, 192,457,257.90 and 127,171,097.80 is: 190,756,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,838.60 : 192,457,257.90 = 127,171,097.80 : x
  2. Step 2: Convert to fraction form
    128,304,838.60/192,457,257.90 = 127,171,097.80/x
  3. Step 3: Cross multiply
    128,304,838.60x = 192,457,257.90 × 127,171,097.80
  4. Step 4: Simplify right side
    128,304,838.60x = 24,475,000,766,720,724
  5. Step 5: Solve for x
    x = 24,475,000,766,720,724/128,304,838.60
  6. Step 6: Final answer
    x = 190,756,646.70

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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.