Home / 193,428,690.70-290,143,036.05-128,522,029.90

Finding the Fourth Proportional to 193,428,690.70, 290,143,036.05 and 128,522,029.90

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Solution

The fourth proportional to 193,428,690.70, 290,143,036.05 and 128,522,029.90 is: 192,783,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,428,690.70 : 290,143,036.05 = 128,522,029.90 : x
  2. Step 2: Convert to fraction form
    193,428,690.70/290,143,036.05 = 128,522,029.90/x
  3. Step 3: Cross multiply
    193,428,690.70x = 290,143,036.05 × 128,522,029.90
  4. Step 4: Simplify right side
    193,428,690.70x = 37,289,771,954,494,880
  5. Step 5: Solve for x
    x = 37,289,771,954,494,880/193,428,690.70
  6. Step 6: Final answer
    x = 192,783,044.85

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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.