Finding the Fourth Proportional to 7,129,307.95, 10,691,327.69 and 3,086,386.99
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Solution
The fourth proportional to 7,129,307.95, 10,691,327.69 and 3,086,386.99 is: 4,628,440.08
Step by Step Solution
- Step 1: Write the proportion equation
7,129,307.95 : 10,691,327.69 = 3,086,386.99 : x - Step 2: Convert to fraction form
7,129,307.95/10,691,327.69 = 3,086,386.99/x - Step 3: Cross multiply
7,129,307.95x = 10,691,327.69 × 3,086,386.99 - Step 4: Simplify right side
7,129,307.95x = 32,997,574,672,810.82 - Step 5: Solve for x
x = 32,997,574,672,810.82/7,129,307.95 - Step 6: Final answer
x = 4,628,440.08
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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.