Finding the Fourth Proportional to 310,236,032.97, 428,125,621.07 and 171,009,119.79
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Solution
The fourth proportional to 310,236,032.97, 428,125,621.07 and 171,009,119.79 is: 235,992,527.74
Step by Step Solution
- Step 1: Write the proportion equation
310,236,032.97 : 428,125,621.07 = 171,009,119.79 : x - Step 2: Convert to fraction form
310,236,032.97/428,125,621.07 = 171,009,119.79/x - Step 3: Cross multiply
310,236,032.97x = 428,125,621.07 × 171,009,119.79 - Step 4: Simplify right side
310,236,032.97x = 73,213,385,617,872,736 - Step 5: Solve for x
x = 73,213,385,617,872,736/310,236,032.97 - Step 6: Final answer
x = 235,992,527.74
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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.