Finding the Fourth Proportional to 7,394,854.84, 10,205,427.74 and 4,087,077.98
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Solution
The fourth proportional to 7,394,854.84, 10,205,427.74 and 4,087,077.98 is: 5,640,459.47
Step by Step Solution
- Step 1: Write the proportion equation
7,394,854.84 : 10,205,427.74 = 4,087,077.98 : x - Step 2: Convert to fraction form
7,394,854.84/10,205,427.74 = 4,087,077.98/x - Step 3: Cross multiply
7,394,854.84x = 10,205,427.74 × 4,087,077.98 - Step 4: Simplify right side
7,394,854.84x = 41,710,379,010,173.45 - Step 5: Solve for x
x = 41,710,379,010,173.45/7,394,854.84 - Step 6: Final answer
x = 5,640,459.47
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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.