Home / 386,304,515.10-579,456,772.65-263,860,508.70

Finding the Fourth Proportional to 386,304,515.10, 579,456,772.65 and 263,860,508.70

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Solution

The fourth proportional to 386,304,515.10, 579,456,772.65 and 263,860,508.70 is: 395,790,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,304,515.10 : 579,456,772.65 = 263,860,508.70 : x
  2. Step 2: Convert to fraction form
    386,304,515.10/579,456,772.65 = 263,860,508.70/x
  3. Step 3: Cross multiply
    386,304,515.10x = 579,456,772.65 × 263,860,508.70
  4. Step 4: Simplify right side
    386,304,515.10x = 152,895,758,801,089,248
  5. Step 5: Solve for x
    x = 152,895,758,801,089,248/386,304,515.10
  6. Step 6: Final answer
    x = 395,790,763.05

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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.