Finding the Fourth Proportional to 209,710,972.08, 289,525,283.18 and 186,441,827.90
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Solution
The fourth proportional to 209,710,972.08, 289,525,283.18 and 186,441,827.90 is: 257,400,089.68
Step by Step Solution
- Step 1: Write the proportion equation
209,710,972.08 : 289,525,283.18 = 186,441,827.90 : x - Step 2: Convert to fraction form
209,710,972.08/289,525,283.18 = 186,441,827.90/x - Step 3: Cross multiply
209,710,972.08x = 289,525,283.18 × 186,441,827.90 - Step 4: Simplify right side
209,710,972.08x = 53,979,623,019,344,328 - Step 5: Solve for x
x = 53,979,623,019,344,328/209,710,972.08 - Step 6: Final answer
x = 257,400,089.68
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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.