Home / 213,346,067.70-320,019,101.55-144,471,314.10

Finding the Fourth Proportional to 213,346,067.70, 320,019,101.55 and 144,471,314.10

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Solution

The fourth proportional to 213,346,067.70, 320,019,101.55 and 144,471,314.10 is: 216,706,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,346,067.70 : 320,019,101.55 = 144,471,314.10 : x
  2. Step 2: Convert to fraction form
    213,346,067.70/320,019,101.55 = 144,471,314.10/x
  3. Step 3: Cross multiply
    213,346,067.70x = 320,019,101.55 × 144,471,314.10
  4. Step 4: Simplify right side
    213,346,067.70x = 46,233,580,138,029,848
  5. Step 5: Solve for x
    x = 46,233,580,138,029,848/213,346,067.70
  6. Step 6: Final answer
    x = 216,706,971.15

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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.