Finding the Fourth Proportional to 318,730,476.99, 439,836,446.13 and 177,594,405.30
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Solution
The fourth proportional to 318,730,476.99, 439,836,446.13 and 177,594,405.30 is: 245,073,809.12
Step by Step Solution
- Step 1: Write the proportion equation
318,730,476.99 : 439,836,446.13 = 177,594,405.30 : x - Step 2: Convert to fraction form
318,730,476.99/439,836,446.13 = 177,594,405.30/x - Step 3: Cross multiply
318,730,476.99x = 439,836,446.13 × 177,594,405.30 - Step 4: Simplify right side
318,730,476.99x = 78,112,492,079,722,848 - Step 5: Solve for x
x = 78,112,492,079,722,848/318,730,476.99 - Step 6: Final answer
x = 245,073,809.12
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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.