Finding the Fourth Proportional to 18,137,139.84, 27,209,296.80 and 5,183,406.72
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Solution
The fourth proportional to 18,137,139.84, 27,209,296.80 and 5,183,406.72 is: 7,776,135.22
Step by Step Solution
- Step 1: Write the proportion equation
18,137,139.84 : 27,209,296.80 = 5,183,406.72 : x - Step 2: Convert to fraction form
18,137,139.84/27,209,296.80 = 5,183,406.72/x - Step 3: Cross multiply
18,137,139.84x = 27,209,296.80 × 5,183,406.72 - Step 4: Simplify right side
18,137,139.84x = 141,036,851,879,594.50 - Step 5: Solve for x
x = 141,036,851,879,594.50/18,137,139.84 - Step 6: Final answer
x = 7,776,135.22
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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.