Home / 38,910,670.66-53,695,788.93-21,268,781.62

Finding the Fourth Proportional to 38,910,670.66, 53,695,788.93 and 21,268,781.62

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Solution

The fourth proportional to 38,910,670.66, 53,695,788.93 and 21,268,781.62 is: 29,350,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,670.66 : 53,695,788.93 = 21,268,781.62 : x
  2. Step 2: Convert to fraction form
    38,910,670.66/53,695,788.93 = 21,268,781.62/x
  3. Step 3: Cross multiply
    38,910,670.66x = 53,695,788.93 × 21,268,781.62
  4. Step 4: Simplify right side
    38,910,670.66x = 1,142,044,008,665,783.50
  5. Step 5: Solve for x
    x = 1,142,044,008,665,783.50/38,910,670.66
  6. Step 6: Final answer
    x = 29,350,406.70

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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.