Finding the Fourth Proportional to 726,863,435.80, 1,090,295,153.70 and 338,557,211.80
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Solution
The fourth proportional to 726,863,435.80, 1,090,295,153.70 and 338,557,211.80 is: 507,835,817.70
Step by Step Solution
- Step 1: Write the proportion equation
726,863,435.80 : 1,090,295,153.70 = 338,557,211.80 : x - Step 2: Convert to fraction form
726,863,435.80/1,090,295,153.70 = 338,557,211.80/x - Step 3: Cross multiply
726,863,435.80x = 1,090,295,153.70 × 338,557,211.80 - Step 4: Simplify right side
726,863,435.80x = 369,127,287,275,724,480 - Step 5: Solve for x
x = 369,127,287,275,724,480/726,863,435.80 - Step 6: Final answer
x = 507,835,817.70
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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.