Finding the Fourth Proportional to 5,427,370.36, 7,489,878.21 and 2,979,959.99
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Solution
The fourth proportional to 5,427,370.36, 7,489,878.21 and 2,979,959.99 is: 4,112,403.60
Step by Step Solution
- Step 1: Write the proportion equation
5,427,370.36 : 7,489,878.21 = 2,979,959.99 : x - Step 2: Convert to fraction form
5,427,370.36/7,489,878.21 = 2,979,959.99/x - Step 3: Cross multiply
5,427,370.36x = 7,489,878.21 × 2,979,959.99 - Step 4: Simplify right side
5,427,370.36x = 22,319,537,380,873.02 - Step 5: Solve for x
x = 22,319,537,380,873.02/5,427,370.36 - Step 6: Final answer
x = 4,112,403.60
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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.