Home / 20,872,888.22-31,310,316.48-17,222,848.09

Finding the Fourth Proportional to 20,872,888.22, 31,310,316.48 and 17,222,848.09

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Solution

The fourth proportional to 20,872,888.22, 31,310,316.48 and 17,222,848.09 is: 25,835,084.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,888.22 : 31,310,316.48 = 17,222,848.09 : x
  2. Step 2: Convert to fraction form
    20,872,888.22/31,310,316.48 = 17,222,848.09/x
  3. Step 3: Cross multiply
    20,872,888.22x = 31,310,316.48 × 17,222,848.09
  4. Step 4: Simplify right side
    20,872,888.22x = 539,252,824,298,749.31
  5. Step 5: Solve for x
    x = 539,252,824,298,749.31/20,872,888.22
  6. Step 6: Final answer
    x = 25,835,084.19

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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.