Home / 21,410,591,231.28-29,544,883,655.76-12,378,928,803.60

Finding the Fourth Proportional to 21,410,591,231.28, 29,544,883,655.76 and 12,378,928,803.60

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Solution

The fourth proportional to 21,410,591,231.28, 29,544,883,655.76 and 12,378,928,803.60 is: 17,081,920,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410,591,231.28 : 29,544,883,655.76 = 12,378,928,803.60 : x
  2. Step 2: Convert to fraction form
    21,410,591,231.28/29,544,883,655.76 = 12,378,928,803.60/x
  3. Step 3: Cross multiply
    21,410,591,231.28x = 29,544,883,655.76 × 12,378,928,803.60
  4. Step 4: Simplify right side
    21,410,591,231.28x = 365,734,011,285,298,348,032
  5. Step 5: Solve for x
    x = 365,734,011,285,298,348,032/21,410,591,231.28
  6. Step 6: Final answer
    x = 17,081,920,220.45

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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.