Home / 38,702,842.67-53,409,907.22-21,299,187.84

Finding the Fourth Proportional to 38,702,842.67, 53,409,907.22 and 21,299,187.84

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Solution

The fourth proportional to 38,702,842.67, 53,409,907.22 and 21,299,187.84 is: 29,392,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,702,842.67 : 53,409,907.22 = 21,299,187.84 : x
  2. Step 2: Convert to fraction form
    38,702,842.67/53,409,907.22 = 21,299,187.84/x
  3. Step 3: Cross multiply
    38,702,842.67x = 53,409,907.22 × 21,299,187.84
  4. Step 4: Simplify right side
    38,702,842.67x = 1,137,587,646,208,777
  5. Step 5: Solve for x
    x = 1,137,587,646,208,777/38,702,842.67
  6. Step 6: Final answer
    x = 29,392,870.59

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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.