Finding the Fourth Proportional to 318,730,426.10, 439,836,375.70 and 177,594,354.18
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Solution
The fourth proportional to 318,730,426.10, 439,836,375.70 and 177,594,354.18 is: 245,073,738.47
Step by Step Solution
- Step 1: Write the proportion equation
318,730,426.10 : 439,836,375.70 = 177,594,354.18 : x - Step 2: Convert to fraction form
318,730,426.10/439,836,375.70 = 177,594,354.18/x - Step 3: Cross multiply
318,730,426.10x = 439,836,375.70 × 177,594,354.18 - Step 4: Simplify right side
318,730,426.10x = 78,112,457,087,313,344 - Step 5: Solve for x
x = 78,112,457,087,313,344/318,730,426.10 - Step 6: Final answer
x = 245,073,738.47
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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.