Finding the Fourth Proportional to 21,366,808.08, 29,484,825.48 and 11,948,375.70
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Solution
The fourth proportional to 21,366,808.08, 29,484,825.48 and 11,948,375.70 is: 16,487,992.54
Step by Step Solution
- Step 1: Write the proportion equation
21,366,808.08 : 29,484,825.48 = 11,948,375.70 : x - Step 2: Convert to fraction form
21,366,808.08/29,484,825.48 = 11,948,375.70/x - Step 3: Cross multiply
21,366,808.08x = 29,484,825.48 × 11,948,375.70 - Step 4: Simplify right side
21,366,808.08x = 352,295,772,283,972.81 - Step 5: Solve for x
x = 352,295,772,283,972.81/21,366,808.08 - Step 6: Final answer
x = 16,487,992.54
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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.