Home / 38,662,290.70-53,353,586.06-21,021,193.02

Finding the Fourth Proportional to 38,662,290.70, 53,353,586.06 and 21,021,193.02

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Solution

The fourth proportional to 38,662,290.70, 53,353,586.06 and 21,021,193.02 is: 29,009,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,662,290.70 : 53,353,586.06 = 21,021,193.02 : x
  2. Step 2: Convert to fraction form
    38,662,290.70/53,353,586.06 = 21,021,193.02/x
  3. Step 3: Cross multiply
    38,662,290.70x = 53,353,586.06 × 21,021,193.02
  4. Step 4: Simplify right side
    38,662,290.70x = 1,121,556,030,868,371.12
  5. Step 5: Solve for x
    x = 1,121,556,030,868,371.12/38,662,290.70
  6. Step 6: Final answer
    x = 29,009,042.42

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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.