Home / 188,646,957,938.11-282,871,145,266.02-128,972,685,953.03

Finding the Fourth Proportional to 188,646,957,938.11, 282,871,145,266.02 and 128,972,685,953.03

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Solution

The fourth proportional to 188,646,957,938.11, 282,871,145,266.02 and 128,972,685,953.03 is: 193,391,145,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,646,957,938.11 : 282,871,145,266.02 = 128,972,685,953.03 : x
  2. Step 2: Convert to fraction form
    188,646,957,938.11/282,871,145,266.02 = 128,972,685,953.03/x
  3. Step 3: Cross multiply
    188,646,957,938.11x = 282,871,145,266.02 × 128,972,685,953.03
  4. Step 4: Simplify right side
    188,646,957,938.11x = 36,482,651,383,568,328,032,256
  5. Step 5: Solve for x
    x = 36,482,651,383,568,328,032,256/188,646,957,938.11
  6. Step 6: Final answer
    x = 193,391,145,992.07

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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.