Home / 12,134,322,021.60-18,201,483,032.40-8,457,978,520.80

Finding the Fourth Proportional to 12,134,322,021.60, 18,201,483,032.40 and 8,457,978,520.80

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Solution

The fourth proportional to 12,134,322,021.60, 18,201,483,032.40 and 8,457,978,520.80 is: 12,686,967,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134,322,021.60 : 18,201,483,032.40 = 8,457,978,520.80 : x
  2. Step 2: Convert to fraction form
    12,134,322,021.60/18,201,483,032.40 = 8,457,978,520.80/x
  3. Step 3: Cross multiply
    12,134,322,021.60x = 18,201,483,032.40 × 8,457,978,520.80
  4. Step 4: Simplify right side
    12,134,322,021.60x = 153,947,752,534,744,858,624
  5. Step 5: Solve for x
    x = 153,947,752,534,744,858,624/12,134,322,021.60
  6. Step 6: Final answer
    x = 12,686,967,781.20

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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.