Finding the Fourth Proportional to 13,777,770.23, 19,012,972.98 and 7,498,030.62
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Solution
The fourth proportional to 13,777,770.23, 19,012,972.98 and 7,498,030.62 is: 10,347,091.82
Step by Step Solution
- Step 1: Write the proportion equation
13,777,770.23 : 19,012,972.98 = 7,498,030.62 : x - Step 2: Convert to fraction form
13,777,770.23/19,012,972.98 = 7,498,030.62/x - Step 3: Cross multiply
13,777,770.23x = 19,012,972.98 × 7,498,030.62 - Step 4: Simplify right side
13,777,770.23x = 142,559,853,581,272.66 - Step 5: Solve for x
x = 142,559,853,581,272.66/13,777,770.23 - Step 6: Final answer
x = 10,347,091.82
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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.