Finding the Fourth Proportional to 590,576,129.10, 815,018,366.79 and 339,680,118.42
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Solution
The fourth proportional to 590,576,129.10, 815,018,366.79 and 339,680,118.42 is: 468,771,969.78
Step by Step Solution
- Step 1: Write the proportion equation
590,576,129.10 : 815,018,366.79 = 339,680,118.42 : x - Step 2: Convert to fraction form
590,576,129.10/815,018,366.79 = 339,680,118.42/x - Step 3: Cross multiply
590,576,129.10x = 815,018,366.79 × 339,680,118.42 - Step 4: Simplify right side
590,576,129.10x = 276,845,535,341,627,104 - Step 5: Solve for x
x = 276,845,535,341,627,104/590,576,129.10 - Step 6: Final answer
x = 468,771,969.78
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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.