Finding the Fourth Proportional to 538,513,555.80, 743,022,135.48 and 326,815,694.19
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Solution
The fourth proportional to 538,513,555.80, 743,022,135.48 and 326,815,694.19 is: 450,928,843.65
Step by Step Solution
- Step 1: Write the proportion equation
538,513,555.80 : 743,022,135.48 = 326,815,694.19 : x - Step 2: Convert to fraction form
538,513,555.80/743,022,135.48 = 326,815,694.19/x - Step 3: Cross multiply
538,513,555.80x = 743,022,135.48 × 326,815,694.19 - Step 4: Simplify right side
538,513,555.80x = 242,831,295,005,432,448 - Step 5: Solve for x
x = 242,831,295,005,432,448/538,513,555.80 - Step 6: Final answer
x = 450,928,843.65
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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.