Finding the Fourth Proportional to 30,647,776.48, 42,295,837.44 and 16,896,719.68
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Solution
The fourth proportional to 30,647,776.48, 42,295,837.44 and 16,896,719.68 is: 23,318,523.92
Step by Step Solution
- Step 1: Write the proportion equation
30,647,776.48 : 42,295,837.44 = 16,896,719.68 : x - Step 2: Convert to fraction form
30,647,776.48/42,295,837.44 = 16,896,719.68/x - Step 3: Cross multiply
30,647,776.48x = 42,295,837.44 × 16,896,719.68 - Step 4: Simplify right side
30,647,776.48x = 714,660,908,854,528.75 - Step 5: Solve for x
x = 714,660,908,854,528.75/30,647,776.48 - Step 6: Final answer
x = 23,318,523.92
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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.