Finding the Fourth Proportional to 19,552,316.34, 26,979,442.21 and 11,709,990.66
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Solution
The fourth proportional to 19,552,316.34, 26,979,442.21 and 11,709,990.66 is: 16,158,137.52
Step by Step Solution
- Step 1: Write the proportion equation
19,552,316.34 : 26,979,442.21 = 11,709,990.66 : x - Step 2: Convert to fraction form
19,552,316.34/26,979,442.21 = 11,709,990.66/x - Step 3: Cross multiply
19,552,316.34x = 26,979,442.21 × 11,709,990.66 - Step 4: Simplify right side
19,552,316.34x = 315,929,016,291,109.75 - Step 5: Solve for x
x = 315,929,016,291,109.75/19,552,316.34 - Step 6: Final answer
x = 16,158,137.52
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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.