Home / 81,327,888,037.80-121,991,832,056.70-28,964,179,621.80

Finding the Fourth Proportional to 81,327,888,037.80, 121,991,832,056.70 and 28,964,179,621.80

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Solution

The fourth proportional to 81,327,888,037.80, 121,991,832,056.70 and 28,964,179,621.80 is: 43,446,269,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,327,888,037.80 : 121,991,832,056.70 = 28,964,179,621.80 : x
  2. Step 2: Convert to fraction form
    81,327,888,037.80/121,991,832,056.70 = 28,964,179,621.80/x
  3. Step 3: Cross multiply
    81,327,888,037.80x = 121,991,832,056.70 × 28,964,179,621.80
  4. Step 4: Simplify right side
    81,327,888,037.80x = 3,533,393,336,082,717,736,960
  5. Step 5: Solve for x
    x = 3,533,393,336,082,717,736,960/81,327,888,037.80
  6. Step 6: Final answer
    x = 43,446,269,432.70

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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.