Finding the Fourth Proportional to 7,578,690.90, 11,368,036.35 and 2,187,517.20
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Solution
The fourth proportional to 7,578,690.90, 11,368,036.35 and 2,187,517.20 is: 3,281,275.80
Step by Step Solution
- Step 1: Write the proportion equation
7,578,690.90 : 11,368,036.35 = 2,187,517.20 : x - Step 2: Convert to fraction form
7,578,690.90/11,368,036.35 = 2,187,517.20/x - Step 3: Cross multiply
7,578,690.90x = 11,368,036.35 × 2,187,517.20 - Step 4: Simplify right side
7,578,690.90x = 24,867,775,045,850.22 - Step 5: Solve for x
x = 24,867,775,045,850.22/7,578,690.90 - Step 6: Final answer
x = 3,281,275.80
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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.