Home / 128,062,849.16-191,986,629.60-103,741,461.92

Finding the Fourth Proportional to 128,062,849.16, 191,986,629.60 and 103,741,461.92

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Solution

The fourth proportional to 128,062,849.16, 191,986,629.60 and 103,741,461.92 is: 155,524,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,062,849.16 : 191,986,629.60 = 103,741,461.92 : x
  2. Step 2: Convert to fraction form
    128,062,849.16/191,986,629.60 = 103,741,461.92/x
  3. Step 3: Cross multiply
    128,062,849.16x = 191,986,629.60 × 103,741,461.92
  4. Step 4: Simplify right side
    128,062,849.16x = 19,916,973,624,666,540
  5. Step 5: Solve for x
    x = 19,916,973,624,666,540/128,062,849.16
  6. Step 6: Final answer
    x = 155,524,992.26

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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.