Home / 355,569,546,022.78-490,686,336,662.76-192,989,225,447.02

Finding the Fourth Proportional to 355,569,546,022.78, 490,686,336,662.76 and 192,989,225,447.02

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Solution

The fourth proportional to 355,569,546,022.78, 490,686,336,662.76 and 192,989,225,447.02 is: 266,325,328,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,569,546,022.78 : 490,686,336,662.76 = 192,989,225,447.02 : x
  2. Step 2: Convert to fraction form
    355,569,546,022.78/490,686,336,662.76 = 192,989,225,447.02/x
  3. Step 3: Cross multiply
    355,569,546,022.78x = 490,686,336,662.76 × 192,989,225,447.02
  4. Step 4: Simplify right side
    355,569,546,022.78x = 94,697,176,049,981,734,256,640
  5. Step 5: Solve for x
    x = 94,697,176,049,981,734,256,640/355,569,546,022.78
  6. Step 6: Final answer
    x = 266,325,328,221.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.