Finding the Fourth Proportional to 306,851,474.24, 423,467,907.36 and 176,471,385.92
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Solution
The fourth proportional to 306,851,474.24, 423,467,907.36 and 176,471,385.92 is: 243,537,915.83
Step by Step Solution
- Step 1: Write the proportion equation
306,851,474.24 : 423,467,907.36 = 176,471,385.92 : x - Step 2: Convert to fraction form
306,851,474.24/423,467,907.36 = 176,471,385.92/x - Step 3: Cross multiply
306,851,474.24x = 423,467,907.36 × 176,471,385.92 - Step 4: Simplify right side
306,851,474.24x = 74,729,968,504,461,360 - Step 5: Solve for x
x = 74,729,968,504,461,360/306,851,474.24 - Step 6: Final answer
x = 243,537,915.83
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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.