Finding the Fourth Proportional to 21,526,278.12, 29,706,495.66 and 11,736,642.42
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Solution
The fourth proportional to 21,526,278.12, 29,706,495.66 and 11,736,642.42 is: 16,196,692.95
Step by Step Solution
- Step 1: Write the proportion equation
21,526,278.12 : 29,706,495.66 = 11,736,642.42 : x - Step 2: Convert to fraction form
21,526,278.12/29,706,495.66 = 11,736,642.42/x - Step 3: Cross multiply
21,526,278.12x = 29,706,495.66 × 11,736,642.42 - Step 4: Simplify right side
21,526,278.12x = 348,654,517,112,701.88 - Step 5: Solve for x
x = 348,654,517,112,701.88/21,526,278.12 - Step 6: Final answer
x = 16,196,692.95
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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.