Finding the Fourth Proportional to 20,317,473.24, 30,476,268.98 and 8,642,836.78
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Solution
The fourth proportional to 20,317,473.24, 30,476,268.98 and 8,642,836.78 is: 12,964,280.32
Step by Step Solution
- Step 1: Write the proportion equation
20,317,473.24 : 30,476,268.98 = 8,642,836.78 : x - Step 2: Convert to fraction form
20,317,473.24/30,476,268.98 = 8,642,836.78/x - Step 3: Cross multiply
20,317,473.24x = 30,476,268.98 × 8,642,836.78 - Step 4: Simplify right side
20,317,473.24x = 263,401,418,484,808.88 - Step 5: Solve for x
x = 263,401,418,484,808.88/20,317,473.24 - Step 6: Final answer
x = 12,964,280.32
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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.