Home / 128,485,659,539.24-177,314,462,433.96-70,616,090,571.93

Finding the Fourth Proportional to 128,485,659,539.24, 177,314,462,433.96 and 70,616,090,571.93

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Solution

The fourth proportional to 128,485,659,539.24, 177,314,462,433.96 and 70,616,090,571.93 is: 97,452,542,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,659,539.24 : 177,314,462,433.96 = 70,616,090,571.93 : x
  2. Step 2: Convert to fraction form
    128,485,659,539.24/177,314,462,433.96 = 70,616,090,571.93/x
  3. Step 3: Cross multiply
    128,485,659,539.24x = 177,314,462,433.96 × 70,616,090,571.93
  4. Step 4: Simplify right side
    128,485,659,539.24x = 12,521,254,138,949,597,659,136
  5. Step 5: Solve for x
    x = 12,521,254,138,949,597,659,136/128,485,659,539.24
  6. Step 6: Final answer
    x = 97,452,542,049.06

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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.