Home / 21,470,138.31-29,628,860.37-11,680,580.37

Finding the Fourth Proportional to 21,470,138.31, 29,628,860.37 and 11,680,580.37

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Solution

The fourth proportional to 21,470,138.31, 29,628,860.37 and 11,680,580.37 is: 16,119,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470,138.31 : 29,628,860.37 = 11,680,580.37 : x
  2. Step 2: Convert to fraction form
    21,470,138.31/29,628,860.37 = 11,680,580.37/x
  3. Step 3: Cross multiply
    21,470,138.31x = 29,628,860.37 × 11,680,580.37
  4. Step 4: Simplify right side
    21,470,138.31x = 346,082,284,823,292.94
  5. Step 5: Solve for x
    x = 346,082,284,823,292.94/21,470,138.31
  6. Step 6: Final answer
    x = 16,119,238.72

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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.