Finding the Fourth Proportional to 15,515,472.44, 21,411,351.81 and 8,992,885.28
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Solution
The fourth proportional to 15,515,472.44, 21,411,351.81 and 8,992,885.28 is: 12,410,181.59
Step by Step Solution
- Step 1: Write the proportion equation
15,515,472.44 : 21,411,351.81 = 8,992,885.28 : x - Step 2: Convert to fraction form
15,515,472.44/21,411,351.81 = 8,992,885.28/x - Step 3: Cross multiply
15,515,472.44x = 21,411,351.81 × 8,992,885.28 - Step 4: Simplify right side
15,515,472.44x = 192,549,830,409,993.59 - Step 5: Solve for x
x = 192,549,830,409,993.59/15,515,472.44 - Step 6: Final answer
x = 12,410,181.59
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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.