Finding the Fourth Proportional to 31,720,301.20, 47,527,307.70 and 27,149,908.60
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Solution
The fourth proportional to 31,720,301.20, 47,527,307.70 and 27,149,908.60 is: 40,679,376.02
Step by Step Solution
- Step 1: Write the proportion equation
31,720,301.20 : 47,527,307.70 = 27,149,908.60 : x - Step 2: Convert to fraction form
31,720,301.20/47,527,307.70 = 27,149,908.60/x - Step 3: Cross multiply
31,720,301.20x = 47,527,307.70 × 27,149,908.60 - Step 4: Simplify right side
31,720,301.20x = 1,290,362,060,059,076.25 - Step 5: Solve for x
x = 1,290,362,060,059,076.25/31,720,301.20 - Step 6: Final answer
x = 40,679,376.02
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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.