Finding the Fourth Proportional to 21,102,602.09, 31,653,853.92 and 13,861,767.67
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Solution
The fourth proportional to 21,102,602.09, 31,653,853.92 and 13,861,767.67 is: 20,792,619.18
Step by Step Solution
- Step 1: Write the proportion equation
21,102,602.09 : 31,653,853.92 = 13,861,767.67 : x - Step 2: Convert to fraction form
21,102,602.09/31,653,853.92 = 13,861,767.67/x - Step 3: Cross multiply
21,102,602.09x = 31,653,853.92 × 13,861,767.67 - Step 4: Simplify right side
21,102,602.09x = 438,778,368,820,024.19 - Step 5: Solve for x
x = 438,778,368,820,024.19/21,102,602.09 - Step 6: Final answer
x = 20,792,619.18
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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.