Home / 151,814,021.10-209,503,446.75-82,199,448.06

Finding the Fourth Proportional to 151,814,021.10, 209,503,446.75 and 82,199,448.06

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Solution

The fourth proportional to 151,814,021.10, 209,503,446.75 and 82,199,448.06 is: 113,435,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,814,021.10 : 209,503,446.75 = 82,199,448.06 : x
  2. Step 2: Convert to fraction form
    151,814,021.10/209,503,446.75 = 82,199,448.06/x
  3. Step 3: Cross multiply
    151,814,021.10x = 209,503,446.75 × 82,199,448.06
  4. Step 4: Simplify right side
    151,814,021.10x = 17,221,067,689,517,602
  5. Step 5: Solve for x
    x = 17,221,067,689,517,602/151,814,021.10
  6. Step 6: Final answer
    x = 113,435,291.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.