Finding the Fourth Proportional to 383,743,552.23, 529,567,686.81 and 207,531,543.87
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Solution
The fourth proportional to 383,743,552.23, 529,567,686.81 and 207,531,543.87 is: 286,394,387.58
Step by Step Solution
- Step 1: Write the proportion equation
383,743,552.23 : 529,567,686.81 = 207,531,543.87 : x - Step 2: Convert to fraction form
383,743,552.23/529,567,686.81 = 207,531,543.87/x - Step 3: Cross multiply
383,743,552.23x = 529,567,686.81 × 207,531,543.87 - Step 4: Simplify right side
383,743,552.23x = 109,901,999,627,343,936 - Step 5: Solve for x
x = 109,901,999,627,343,936/383,743,552.23 - Step 6: Final answer
x = 286,394,387.58
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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.