Finding the Fourth Proportional to 590,669,422.74, 815,140,239.21 and 326,368,446.66
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Solution
The fourth proportional to 590,669,422.74, 815,140,239.21 and 326,368,446.66 is: 450,397,537.84
Step by Step Solution
- Step 1: Write the proportion equation
590,669,422.74 : 815,140,239.21 = 326,368,446.66 : x - Step 2: Convert to fraction form
590,669,422.74/815,140,239.21 = 326,368,446.66/x - Step 3: Cross multiply
590,669,422.74x = 815,140,239.21 × 326,368,446.66 - Step 4: Simplify right side
590,669,422.74x = 266,036,053,681,028,544 - Step 5: Solve for x
x = 266,036,053,681,028,544/590,669,422.74 - Step 6: Final answer
x = 450,397,537.84
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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.