Home / 310,065,313,353.48-427,969,745,580.60-201,947,829,658.56

Finding the Fourth Proportional to 310,065,313,353.48, 427,969,745,580.60 and 201,947,829,658.56

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Solution

The fourth proportional to 310,065,313,353.48, 427,969,745,580.60 and 201,947,829,658.56 is: 278,739,857,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,065,313,353.48 : 427,969,745,580.60 = 201,947,829,658.56 : x
  2. Step 2: Convert to fraction form
    310,065,313,353.48/427,969,745,580.60 = 201,947,829,658.56/x
  3. Step 3: Cross multiply
    310,065,313,353.48x = 427,969,745,580.60 × 201,947,829,658.56
  4. Step 4: Simplify right side
    310,065,313,353.48x = 86,427,561,279,528,256,929,792
  5. Step 5: Solve for x
    x = 86,427,561,279,528,256,929,792/310,065,313,353.48
  6. Step 6: Final answer
    x = 278,739,857,563.49

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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.