Home / 211,968,015.60-317,952,023.40-68,375,362.80

Finding the Fourth Proportional to 211,968,015.60, 317,952,023.40 and 68,375,362.80

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Solution

The fourth proportional to 211,968,015.60, 317,952,023.40 and 68,375,362.80 is: 102,563,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968,015.60 : 317,952,023.40 = 68,375,362.80 : x
  2. Step 2: Convert to fraction form
    211,968,015.60/317,952,023.40 = 68,375,362.80/x
  3. Step 3: Cross multiply
    211,968,015.60x = 317,952,023.40 × 68,375,362.80
  4. Step 4: Simplify right side
    211,968,015.60x = 21,740,084,952,969,088
  5. Step 5: Solve for x
    x = 21,740,084,952,969,088/211,968,015.60
  6. Step 6: Final answer
    x = 102,563,044.20

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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.