Finding the Fourth Proportional to 990,109,065,553.54, 1,485,161,744,686.60 and 310,239,468,890.08
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Solution
The fourth proportional to 990,109,065,553.54, 1,485,161,744,686.60 and 310,239,468,890.08 is: 465,358,622,516.84
Step by Step Solution
- Step 1: Write the proportion equation
990,109,065,553.54 : 1,485,161,744,686.60 = 310,239,468,890.08 : x - Step 2: Convert to fraction form
990,109,065,553.54/1,485,161,744,686.60 = 310,239,468,890.08/x - Step 3: Cross multiply
990,109,065,553.54x = 1,485,161,744,686.60 × 310,239,468,890.08 - Step 4: Simplify right side
990,109,065,553.54x = 460,755,790,887,435,404,050,432 - Step 5: Solve for x
x = 460,755,790,887,435,404,050,432/990,109,065,553.54 - Step 6: Final answer
x = 465,358,622,516.84
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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.