Finding the Fourth Proportional to 419,670,528.22, 579,135,101.59 and 231,494,701.99
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Solution
The fourth proportional to 419,670,528.22, 579,135,101.59 and 231,494,701.99 is: 319,457,047.23
Step by Step Solution
- Step 1: Write the proportion equation
419,670,528.22 : 579,135,101.59 = 231,494,701.99 : x - Step 2: Convert to fraction form
419,670,528.22/579,135,101.59 = 231,494,701.99/x - Step 3: Cross multiply
419,670,528.22x = 579,135,101.59 × 231,494,701.99 - Step 4: Simplify right side
419,670,528.22x = 134,066,707,754,525,440 - Step 5: Solve for x
x = 134,066,707,754,525,440/419,670,528.22 - Step 6: Final answer
x = 319,457,047.23
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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.