Home / 188,646,957,939.61-282,871,145,268.27-128,972,685,954.53

Finding the Fourth Proportional to 188,646,957,939.61, 282,871,145,268.27 and 128,972,685,954.53

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Solution

The fourth proportional to 188,646,957,939.61, 282,871,145,268.27 and 128,972,685,954.53 is: 193,391,145,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,646,957,939.61 : 282,871,145,268.27 = 128,972,685,954.53 : x
  2. Step 2: Convert to fraction form
    188,646,957,939.61/282,871,145,268.27 = 128,972,685,954.53/x
  3. Step 3: Cross multiply
    188,646,957,939.61x = 282,871,145,268.27 × 128,972,685,954.53
  4. Step 4: Simplify right side
    188,646,957,939.61x = 36,482,651,384,282,823,524,352
  5. Step 5: Solve for x
    x = 36,482,651,384,282,823,524,352/188,646,957,939.61
  6. Step 6: Final answer
    x = 193,391,145,994.32

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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.