Finding the Fourth Proportional to 9,015,459.36, 13,490,863.74 and 7,805,198.94
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Solution
The fourth proportional to 9,015,459.36, 13,490,863.74 and 7,805,198.94 is: 11,679,812.55
Step by Step Solution
- Step 1: Write the proportion equation
9,015,459.36 : 13,490,863.74 = 7,805,198.94 : x - Step 2: Convert to fraction form
9,015,459.36/13,490,863.74 = 7,805,198.94/x - Step 3: Cross multiply
9,015,459.36x = 13,490,863.74 × 7,805,198.94 - Step 4: Simplify right side
9,015,459.36x = 105,298,875,363,132.44 - Step 5: Solve for x
x = 105,298,875,363,132.44/9,015,459.36 - Step 6: Final answer
x = 11,679,812.55
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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.