Finding the Fourth Proportional to 590,576,132.09, 815,018,370.93 and 339,680,121.41
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Solution
The fourth proportional to 590,576,132.09, 815,018,370.93 and 339,680,121.41 is: 468,771,973.92
Step by Step Solution
- Step 1: Write the proportion equation
590,576,132.09 : 815,018,370.93 = 339,680,121.41 : x - Step 2: Convert to fraction form
590,576,132.09/815,018,370.93 = 339,680,121.41/x - Step 3: Cross multiply
590,576,132.09x = 815,018,370.93 × 339,680,121.41 - Step 4: Simplify right side
590,576,132.09x = 276,845,539,190,920,352 - Step 5: Solve for x
x = 276,845,539,190,920,352/590,576,132.09 - Step 6: Final answer
x = 468,771,973.92
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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.