Home / 316,462,912.70-474,694,369.05-213,150,782.30

Finding the Fourth Proportional to 316,462,912.70, 474,694,369.05 and 213,150,782.30

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Solution

The fourth proportional to 316,462,912.70, 474,694,369.05 and 213,150,782.30 is: 319,726,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,462,912.70 : 474,694,369.05 = 213,150,782.30 : x
  2. Step 2: Convert to fraction form
    316,462,912.70/474,694,369.05 = 213,150,782.30/x
  3. Step 3: Cross multiply
    316,462,912.70x = 474,694,369.05 × 213,150,782.30
  4. Step 4: Simplify right side
    316,462,912.70x = 101,181,476,116,412,416
  5. Step 5: Solve for x
    x = 101,181,476,116,412,416/316,462,912.70
  6. Step 6: Final answer
    x = 319,726,173.45

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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.