Finding the Fourth Proportional to 1,389,828,784.36, 2,084,741,415.60 and 354,689,689.36
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Solution
The fourth proportional to 1,389,828,784.36, 2,084,741,415.60 and 354,689,689.36 is: 532,034,084.64
Step by Step Solution
- Step 1: Write the proportion equation
1,389,828,784.36 : 2,084,741,415.60 = 354,689,689.36 : x - Step 2: Convert to fraction form
1,389,828,784.36/2,084,741,415.60 = 354,689,689.36/x - Step 3: Cross multiply
1,389,828,784.36x = 2,084,741,415.60 × 354,689,689.36 - Step 4: Simplify right side
1,389,828,784.36x = 739,436,285,095,090,688 - Step 5: Solve for x
x = 739,436,285,095,090,688/1,389,828,784.36 - Step 6: Final answer
x = 532,034,084.64
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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.