Home / 128,896,099,280.05-177,868,602,344.94-71,021,240,361.33

Finding the Fourth Proportional to 128,896,099,280.05, 177,868,602,344.94 and 71,021,240,361.33

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Solution

The fourth proportional to 128,896,099,280.05, 177,868,602,344.94 and 71,021,240,361.33 is: 98,004,895,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,896,099,280.05 : 177,868,602,344.94 = 71,021,240,361.33 : x
  2. Step 2: Convert to fraction form
    128,896,099,280.05/177,868,602,344.94 = 71,021,240,361.33/x
  3. Step 3: Cross multiply
    128,896,099,280.05x = 177,868,602,344.94 × 71,021,240,361.33
  4. Step 4: Simplify right side
    128,896,099,280.05x = 12,632,448,759,873,809,678,336
  5. Step 5: Solve for x
    x = 12,632,448,759,873,809,678,336/128,896,099,280.05
  6. Step 6: Final answer
    x = 98,004,895,651.87

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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.