Home / 132,120,001.80-198,180,002.70-86,203,499.40

Finding the Fourth Proportional to 132,120,001.80, 198,180,002.70 and 86,203,499.40

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Solution

The fourth proportional to 132,120,001.80, 198,180,002.70 and 86,203,499.40 is: 129,305,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,120,001.80 : 198,180,002.70 = 86,203,499.40 : x
  2. Step 2: Convert to fraction form
    132,120,001.80/198,180,002.70 = 86,203,499.40/x
  3. Step 3: Cross multiply
    132,120,001.80x = 198,180,002.70 × 86,203,499.40
  4. Step 4: Simplify right side
    132,120,001.80x = 17,083,809,743,841,448
  5. Step 5: Solve for x
    x = 17,083,809,743,841,448/132,120,001.80
  6. Step 6: Final answer
    x = 129,305,249.10

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1.5x scale

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.