Home / 38,853,990.36-53,617,654.62-21,212,290.80

Finding the Fourth Proportional to 38,853,990.36, 53,617,654.62 and 21,212,290.80

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Solution

The fourth proportional to 38,853,990.36, 53,617,654.62 and 21,212,290.80 is: 29,272,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,853,990.36 : 53,617,654.62 = 21,212,290.80 : x
  2. Step 2: Convert to fraction form
    38,853,990.36/53,617,654.62 = 21,212,290.80/x
  3. Step 3: Cross multiply
    38,853,990.36x = 53,617,654.62 × 21,212,290.80
  4. Step 4: Simplify right side
    38,853,990.36x = 1,137,353,281,813,403.50
  5. Step 5: Solve for x
    x = 1,137,353,281,813,403.50/38,853,990.36
  6. Step 6: Final answer
    x = 29,272,496.11

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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.