Home / 845,458,627.20-1,268,187,940.80-386,293,603.20

Finding the Fourth Proportional to 845,458,627.20, 1,268,187,940.80 and 386,293,603.20

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Solution

The fourth proportional to 845,458,627.20, 1,268,187,940.80 and 386,293,603.20 is: 579,440,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,458,627.20 : 1,268,187,940.80 = 386,293,603.20 : x
  2. Step 2: Convert to fraction form
    845,458,627.20/1,268,187,940.80 = 386,293,603.20/x
  3. Step 3: Cross multiply
    845,458,627.20x = 1,268,187,940.80 × 386,293,603.20
  4. Step 4: Simplify right side
    845,458,627.20x = 489,892,889,186,420,288
  5. Step 5: Solve for x
    x = 489,892,889,186,420,288/845,458,627.20
  6. Step 6: Final answer
    x = 579,440,404.80

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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.