Home / 256,317,644.30-353,720,047.46-138,842,974.49

Finding the Fourth Proportional to 256,317,644.30, 353,720,047.46 and 138,842,974.49

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Solution

The fourth proportional to 256,317,644.30, 353,720,047.46 and 138,842,974.49 is: 191,604,224.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,644.30 : 353,720,047.46 = 138,842,974.49 : x
  2. Step 2: Convert to fraction form
    256,317,644.30/353,720,047.46 = 138,842,974.49/x
  3. Step 3: Cross multiply
    256,317,644.30x = 353,720,047.46 × 138,842,974.49
  4. Step 4: Simplify right side
    256,317,644.30x = 49,111,543,523,627,560
  5. Step 5: Solve for x
    x = 49,111,543,523,627,560/256,317,644.30
  6. Step 6: Final answer
    x = 191,604,224.75

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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.