Home / 261,182,392,302.96-391,591,439,874.28-115,725,577,720.32

Finding the Fourth Proportional to 261,182,392,302.96, 391,591,439,874.28 and 115,725,577,720.32

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Solution

The fourth proportional to 261,182,392,302.96, 391,591,439,874.28 and 115,725,577,720.32 is: 173,507,659,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,182,392,302.96 : 391,591,439,874.28 = 115,725,577,720.32 : x
  2. Step 2: Convert to fraction form
    261,182,392,302.96/391,591,439,874.28 = 115,725,577,720.32/x
  3. Step 3: Cross multiply
    261,182,392,302.96x = 391,591,439,874.28 × 115,725,577,720.32
  4. Step 4: Simplify right side
    261,182,392,302.96x = 45,317,145,609,783,008,559,104
  5. Step 5: Solve for x
    x = 45,317,145,609,783,008,559,104/261,182,392,302.96
  6. Step 6: Final answer
    x = 173,507,659,571.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.