Home / 128,111,720.95-192,167,519.92-31,067,412.27

Finding the Fourth Proportional to 128,111,720.95, 192,167,519.92 and 31,067,412.27

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Solution

The fourth proportional to 128,111,720.95, 192,167,519.92 and 31,067,412.27 is: 46,601,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,111,720.95 : 192,167,519.92 = 31,067,412.27 : x
  2. Step 2: Convert to fraction form
    128,111,720.95/192,167,519.92 = 31,067,412.27/x
  3. Step 3: Cross multiply
    128,111,720.95x = 192,167,519.92 × 31,067,412.27
  4. Step 4: Simplify right side
    128,111,720.95x = 5,970,147,565,459,780
  5. Step 5: Solve for x
    x = 5,970,147,565,459,780/128,111,720.95
  6. Step 6: Final answer
    x = 46,601,103.48

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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.