Finding the Fourth Proportional to 5,057,403.21, 6,979,855.59 and 3,316,537.20
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Solution
The fourth proportional to 5,057,403.21, 6,979,855.59 and 3,316,537.20 is: 4,577,240.48
Step by Step Solution
- Step 1: Write the proportion equation
5,057,403.21 : 6,979,855.59 = 3,316,537.20 : x - Step 2: Convert to fraction form
5,057,403.21/6,979,855.59 = 3,316,537.20/x - Step 3: Cross multiply
5,057,403.21x = 6,979,855.59 × 3,316,537.20 - Step 4: Simplify right side
5,057,403.21x = 23,148,950,677,969.83 - Step 5: Solve for x
x = 23,148,950,677,969.83/5,057,403.21 - Step 6: Final answer
x = 4,577,240.48
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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.