Finding the Fourth Proportional to 15,336,632.18, 21,163,813.74 and 8,366,894.84
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Solution
The fourth proportional to 15,336,632.18, 21,163,813.74 and 8,366,894.84 is: 11,545,911.90
Step by Step Solution
- Step 1: Write the proportion equation
15,336,632.18 : 21,163,813.74 = 8,366,894.84 : x - Step 2: Convert to fraction form
15,336,632.18/21,163,813.74 = 8,366,894.84/x - Step 3: Cross multiply
15,336,632.18x = 21,163,813.74 × 8,366,894.84 - Step 4: Simplify right side
15,336,632.18x = 177,075,403,975,927.09 - Step 5: Solve for x
x = 177,075,403,975,927.09/15,336,632.18 - Step 6: Final answer
x = 11,545,911.90
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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.