Finding the Fourth Proportional to 1,193,123,274.77, 1,646,561,150.79 and 664,487,176.08
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Solution
The fourth proportional to 1,193,123,274.77, 1,646,561,150.79 and 664,487,176.08 is: 917,020,724.07
Step by Step Solution
- Step 1: Write the proportion equation
1,193,123,274.77 : 1,646,561,150.79 = 664,487,176.08 : x - Step 2: Convert to fraction form
1,193,123,274.77/1,646,561,150.79 = 664,487,176.08/x - Step 3: Cross multiply
1,193,123,274.77x = 1,646,561,150.79 × 664,487,176.08 - Step 4: Simplify right side
1,193,123,274.77x = 1,094,118,769,338,852,864 - Step 5: Solve for x
x = 1,094,118,769,338,852,864/1,193,123,274.77 - Step 6: Final answer
x = 917,020,724.07
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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.