Finding the Fourth Proportional to 5,394,981.41, 7,444,987.21 and 2,947,539.77
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Solution
The fourth proportional to 5,394,981.41, 7,444,987.21 and 2,947,539.77 is: 4,067,557.28
Step by Step Solution
- Step 1: Write the proportion equation
5,394,981.41 : 7,444,987.21 = 2,947,539.77 : x - Step 2: Convert to fraction form
5,394,981.41/7,444,987.21 = 2,947,539.77/x - Step 3: Cross multiply
5,394,981.41x = 7,444,987.21 × 2,947,539.77 - Step 4: Simplify right side
5,394,981.41x = 21,944,395,873,878.64 - Step 5: Solve for x
x = 21,944,395,873,878.64/5,394,981.41 - Step 6: Final answer
x = 4,067,557.28
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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.