Finding the Fourth Proportional to 929,179,657.28, 1,393,979,466.68 and 307,393,420.79
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Solution
The fourth proportional to 929,179,657.28, 1,393,979,466.68 and 307,393,420.79 is: 461,159,597.51
Step by Step Solution
- Step 1: Write the proportion equation
929,179,657.28 : 1,393,979,466.68 = 307,393,420.79 : x - Step 2: Convert to fraction form
929,179,657.28/1,393,979,466.68 = 307,393,420.79/x - Step 3: Cross multiply
929,179,657.28x = 1,393,979,466.68 × 307,393,420.79 - Step 4: Simplify right side
929,179,657.28x = 428,500,116,765,278,208 - Step 5: Solve for x
x = 428,500,116,765,278,208/929,179,657.28 - Step 6: Final answer
x = 461,159,597.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.