Home / 386,304,429.60-579,456,644.40-263,860,423.20

Finding the Fourth Proportional to 386,304,429.60, 579,456,644.40 and 263,860,423.20

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Solution

The fourth proportional to 386,304,429.60, 579,456,644.40 and 263,860,423.20 is: 395,790,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,304,429.60 : 579,456,644.40 = 263,860,423.20 : x
  2. Step 2: Convert to fraction form
    386,304,429.60/579,456,644.40 = 263,860,423.20/x
  3. Step 3: Cross multiply
    386,304,429.60x = 579,456,644.40 × 263,860,423.20
  4. Step 4: Simplify right side
    386,304,429.60x = 152,895,675,417,435,904
  5. Step 5: Solve for x
    x = 152,895,675,417,435,904/386,304,429.60
  6. Step 6: Final answer
    x = 395,790,634.80

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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.