Home / 38,669,556.80-53,362,766.94-21,265,848.20

Finding the Fourth Proportional to 38,669,556.80, 53,362,766.94 and 21,265,848.20

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Solution

The fourth proportional to 38,669,556.80, 53,362,766.94 and 21,265,848.20 is: 29,346,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669,556.80 : 53,362,766.94 = 21,265,848.20 : x
  2. Step 2: Convert to fraction form
    38,669,556.80/53,362,766.94 = 21,265,848.20/x
  3. Step 3: Cross multiply
    38,669,556.80x = 53,362,766.94 × 21,265,848.20
  4. Step 4: Simplify right side
    38,669,556.80x = 1,134,804,501,278,018.50
  5. Step 5: Solve for x
    x = 1,134,804,501,278,018.50/38,669,556.80
  6. Step 6: Final answer
    x = 29,346,198.80

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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.