Finding the Fourth Proportional to 655,209,121.44, 982,951,881.47 and 212,517,420.38
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Solution
The fourth proportional to 655,209,121.44, 982,951,881.47 and 212,517,420.38 is: 318,820,955.58
Step by Step Solution
- Step 1: Write the proportion equation
655,209,121.44 : 982,951,881.47 = 212,517,420.38 : x - Step 2: Convert to fraction form
655,209,121.44/982,951,881.47 = 212,517,420.38/x - Step 3: Cross multiply
655,209,121.44x = 982,951,881.47 × 212,517,420.38 - Step 4: Simplify right side
655,209,121.44x = 208,894,398,204,021,184 - Step 5: Solve for x
x = 208,894,398,204,021,184/655,209,121.44 - Step 6: Final answer
x = 318,820,955.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.