Home / 211,314,865.21-291,614,857.05-117,229,014.58

Finding the Fourth Proportional to 211,314,865.21, 291,614,857.05 and 117,229,014.58

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Solution

The fourth proportional to 211,314,865.21, 291,614,857.05 and 117,229,014.58 is: 161,776,230.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,314,865.21 : 291,614,857.05 = 117,229,014.58 : x
  2. Step 2: Convert to fraction form
    211,314,865.21/291,614,857.05 = 117,229,014.58/x
  3. Step 3: Cross multiply
    211,314,865.21x = 291,614,857.05 × 117,229,014.58
  4. Step 4: Simplify right side
    211,314,865.21x = 34,185,722,329,942,276
  5. Step 5: Solve for x
    x = 34,185,722,329,942,276/211,314,865.21
  6. Step 6: Final answer
    x = 161,776,230.44

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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.