Finding the Fourth Proportional to 6,279,988.40, 8,666,543.16 and 3,526,895.60
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Solution
The fourth proportional to 6,279,988.40, 8,666,543.16 and 3,526,895.60 is: 4,867,205.32
Step by Step Solution
- Step 1: Write the proportion equation
6,279,988.40 : 8,666,543.16 = 3,526,895.60 : x - Step 2: Convert to fraction form
6,279,988.40/8,666,543.16 = 3,526,895.60/x - Step 3: Cross multiply
6,279,988.40x = 8,666,543.16 × 3,526,895.60 - Step 4: Simplify right side
6,279,988.40x = 30,565,992,938,214.10 - Step 5: Solve for x
x = 30,565,992,938,214.10/6,279,988.40 - Step 6: Final answer
x = 4,867,205.32
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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.