Finding the Fourth Proportional to 318,730,631.97, 439,836,659.73 and 177,594,560.13
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Solution
The fourth proportional to 318,730,631.97, 439,836,659.73 and 177,594,560.13 is: 245,074,022.63
Step by Step Solution
- Step 1: Write the proportion equation
318,730,631.97 : 439,836,659.73 = 177,594,560.13 : x - Step 2: Convert to fraction form
318,730,631.97/439,836,659.73 = 177,594,560.13/x - Step 3: Cross multiply
318,730,631.97x = 439,836,659.73 × 177,594,560.13 - Step 4: Simplify right side
318,730,631.97x = 78,112,598,113,797,840 - Step 5: Solve for x
x = 78,112,598,113,797,840/318,730,631.97 - Step 6: Final answer
x = 245,074,022.63
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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.