Home / 391,653,504,098.40-587,480,256,147.60-313,289,340,002.40

Finding the Fourth Proportional to 391,653,504,098.40, 587,480,256,147.60 and 313,289,340,002.40

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Solution

The fourth proportional to 391,653,504,098.40, 587,480,256,147.60 and 313,289,340,002.40 is: 469,934,010,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,653,504,098.40 : 587,480,256,147.60 = 313,289,340,002.40 : x
  2. Step 2: Convert to fraction form
    391,653,504,098.40/587,480,256,147.60 = 313,289,340,002.40/x
  3. Step 3: Cross multiply
    391,653,504,098.40x = 587,480,256,147.60 × 313,289,340,002.40
  4. Step 4: Simplify right side
    391,653,504,098.40x = 184,051,301,712,922,505,379,840
  5. Step 5: Solve for x
    x = 184,051,301,712,922,505,379,840/391,653,504,098.40
  6. Step 6: Final answer
    x = 469,934,010,003.60

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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.