Home / 808,634,768.60-1,212,952,152.90-263,376,302.60

Finding the Fourth Proportional to 808,634,768.60, 1,212,952,152.90 and 263,376,302.60

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Solution

The fourth proportional to 808,634,768.60, 1,212,952,152.90 and 263,376,302.60 is: 395,064,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,634,768.60 : 1,212,952,152.90 = 263,376,302.60 : x
  2. Step 2: Convert to fraction form
    808,634,768.60/1,212,952,152.90 = 263,376,302.60/x
  3. Step 3: Cross multiply
    808,634,768.60x = 1,212,952,152.90 × 263,376,302.60
  4. Step 4: Simplify right side
    808,634,768.60x = 319,462,853,261,511,872
  5. Step 5: Solve for x
    x = 319,462,853,261,511,872/808,634,768.60
  6. Step 6: Final answer
    x = 395,064,453.90

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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.