Home / 931,662,003.60-1,397,493,005.40-276,714,115.20

Finding the Fourth Proportional to 931,662,003.60, 1,397,493,005.40 and 276,714,115.20

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Solution

The fourth proportional to 931,662,003.60, 1,397,493,005.40 and 276,714,115.20 is: 415,071,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,662,003.60 : 1,397,493,005.40 = 276,714,115.20 : x
  2. Step 2: Convert to fraction form
    931,662,003.60/1,397,493,005.40 = 276,714,115.20/x
  3. Step 3: Cross multiply
    931,662,003.60x = 1,397,493,005.40 × 276,714,115.20
  4. Step 4: Simplify right side
    931,662,003.60x = 386,706,040,487,449,856
  5. Step 5: Solve for x
    x = 386,706,040,487,449,856/931,662,003.60
  6. Step 6: Final answer
    x = 415,071,172.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.