Finding the Fourth Proportional to 419,861,605.84, 579,524,259.96 and 243,706,353.12
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Solution
The fourth proportional to 419,861,605.84, 579,524,259.96 and 243,706,353.12 is: 336,381,659.99
Step by Step Solution
- Step 1: Write the proportion equation
419,861,605.84 : 579,524,259.96 = 243,706,353.12 : x - Step 2: Convert to fraction form
419,861,605.84/579,524,259.96 = 243,706,353.12/x - Step 3: Cross multiply
419,861,605.84x = 579,524,259.96 × 243,706,353.12 - Step 4: Simplify right side
419,861,605.84x = 141,233,743,939,418,448 - Step 5: Solve for x
x = 141,233,743,939,418,448/419,861,605.84 - Step 6: Final answer
x = 336,381,659.99
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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.