Home / 393,362,186.88-542,825,588.16-217,146,397.44

Finding the Fourth Proportional to 393,362,186.88, 542,825,588.16 and 217,146,397.44

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Solution

The fourth proportional to 393,362,186.88, 542,825,588.16 and 217,146,397.44 is: 299,654,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,362,186.88 : 542,825,588.16 = 217,146,397.44 : x
  2. Step 2: Convert to fraction form
    393,362,186.88/542,825,588.16 = 217,146,397.44/x
  3. Step 3: Cross multiply
    393,362,186.88x = 542,825,588.16 × 217,146,397.44
  4. Step 4: Simplify right side
    393,362,186.88x = 117,872,620,907,193,104
  5. Step 5: Solve for x
    x = 117,872,620,907,193,104/393,362,186.88
  6. Step 6: Final answer
    x = 299,654,173.28

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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.