Home / 197,407,893,367.38-272,422,892,846.99-112,921,528,951.38

Finding the Fourth Proportional to 197,407,893,367.38, 272,422,892,846.99 and 112,921,528,951.38

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Solution

The fourth proportional to 197,407,893,367.38, 272,422,892,846.99 and 112,921,528,951.38 is: 155,831,709,952.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,407,893,367.38 : 272,422,892,846.99 = 112,921,528,951.38 : x
  2. Step 2: Convert to fraction form
    197,407,893,367.38/272,422,892,846.99 = 112,921,528,951.38/x
  3. Step 3: Cross multiply
    197,407,893,367.38x = 272,422,892,846.99 × 112,921,528,951.38
  4. Step 4: Simplify right side
    197,407,893,367.38x = 30,762,409,581,640,073,347,072
  5. Step 5: Solve for x
    x = 30,762,409,581,640,073,347,072/197,407,893,367.38
  6. Step 6: Final answer
    x = 155,831,709,952.91

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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.