Home / 20,322,840.90-28,045,937.03-11,502,291.63

Finding the Fourth Proportional to 20,322,840.90, 28,045,937.03 and 11,502,291.63

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Solution

The fourth proportional to 20,322,840.90, 28,045,937.03 and 11,502,291.63 is: 15,873,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322,840.90 : 28,045,937.03 = 11,502,291.63 : x
  2. Step 2: Convert to fraction form
    20,322,840.90/28,045,937.03 = 11,502,291.63/x
  3. Step 3: Cross multiply
    20,322,840.90x = 28,045,937.03 × 11,502,291.63
  4. Step 4: Simplify right side
    20,322,840.90x = 322,592,546,698,164.62
  5. Step 5: Solve for x
    x = 322,592,546,698,164.62/20,322,840.90
  6. Step 6: Final answer
    x = 15,873,398.23

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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.