Home / 395,258,489,712.16-545,534,940,962.60-256,381,880,027.23

Finding the Fourth Proportional to 395,258,489,712.16, 545,534,940,962.60 and 256,381,880,027.23

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Solution

The fourth proportional to 395,258,489,712.16, 545,534,940,962.60 and 256,381,880,027.23 is: 353,857,734,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,258,489,712.16 : 545,534,940,962.60 = 256,381,880,027.23 : x
  2. Step 2: Convert to fraction form
    395,258,489,712.16/545,534,940,962.60 = 256,381,880,027.23/x
  3. Step 3: Cross multiply
    395,258,489,712.16x = 545,534,940,962.60 × 256,381,880,027.23
  4. Step 4: Simplify right side
    395,258,489,712.16x = 139,865,273,784,535,311,450,112
  5. Step 5: Solve for x
    x = 139,865,273,784,535,311,450,112/395,258,489,712.16
  6. Step 6: Final answer
    x = 353,857,734,684.94

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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.