Finding the Fourth Proportional to 318,560,177.86, 439,635,140.12 and 193,117,661.19
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Solution
The fourth proportional to 318,560,177.86, 439,635,140.12 and 193,117,661.19 is: 266,515,766.69
Step by Step Solution
- Step 1: Write the proportion equation
318,560,177.86 : 439,635,140.12 = 193,117,661.19 : x - Step 2: Convert to fraction form
318,560,177.86/439,635,140.12 = 193,117,661.19/x - Step 3: Cross multiply
318,560,177.86x = 439,635,140.12 × 193,117,661.19 - Step 4: Simplify right side
318,560,177.86x = 84,901,310,037,395,136 - Step 5: Solve for x
x = 84,901,310,037,395,136/318,560,177.86 - Step 6: Final answer
x = 266,515,766.69
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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.