Home / 396,395,078.40-546,901,796.10-229,070,381.40

Finding the Fourth Proportional to 396,395,078.40, 546,901,796.10 and 229,070,381.40

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Solution

The fourth proportional to 396,395,078.40, 546,901,796.10 and 229,070,381.40 is: 316,045,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,395,078.40 : 546,901,796.10 = 229,070,381.40 : x
  2. Step 2: Convert to fraction form
    396,395,078.40/546,901,796.10 = 229,070,381.40/x
  3. Step 3: Cross multiply
    396,395,078.40x = 546,901,796.10 × 229,070,381.40
  4. Step 4: Simplify right side
    396,395,078.40x = 125,279,003,020,972,048
  5. Step 5: Solve for x
    x = 125,279,003,020,972,048/396,395,078.40
  6. Step 6: Final answer
    x = 316,045,808.46

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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.