Finding the Fourth Proportional to 18,643,058.40, 27,964,589.63 and 5,689,276.98
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Solution
The fourth proportional to 18,643,058.40, 27,964,589.63 and 5,689,276.98 is: 8,533,916.09
Step by Step Solution
- Step 1: Write the proportion equation
18,643,058.40 : 27,964,589.63 = 5,689,276.98 : x - Step 2: Convert to fraction form
18,643,058.40/27,964,589.63 = 5,689,276.98/x - Step 3: Cross multiply
18,643,058.40x = 27,964,589.63 × 5,689,276.98 - Step 4: Simplify right side
18,643,058.40x = 159,098,296,037,105.72 - Step 5: Solve for x
x = 159,098,296,037,105.72/18,643,058.40 - Step 6: Final answer
x = 8,533,916.09
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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.