Home / 38,416,662.48-53,014,371.26-21,012,855.47

Finding the Fourth Proportional to 38,416,662.48, 53,014,371.26 and 21,012,855.47

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Solution

The fourth proportional to 38,416,662.48, 53,014,371.26 and 21,012,855.47 is: 28,997,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416,662.48 : 53,014,371.26 = 21,012,855.47 : x
  2. Step 2: Convert to fraction form
    38,416,662.48/53,014,371.26 = 21,012,855.47/x
  3. Step 3: Cross multiply
    38,416,662.48x = 53,014,371.26 × 21,012,855.47
  4. Step 4: Simplify right side
    38,416,662.48x = 1,113,983,321,066,166.75
  5. Step 5: Solve for x
    x = 1,113,983,321,066,166.75/38,416,662.48
  6. Step 6: Final answer
    x = 28,997,399.80

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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.