Finding the Fourth Proportional to 71,938,344.00, 99,274,844.70 and 38,898,514.07
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Solution
The fourth proportional to 71,938,344.00, 99,274,844.70 and 38,898,514.07 is: 53,679,911.55
Step by Step Solution
- Step 1: Write the proportion equation
71,938,344.00 : 99,274,844.70 = 38,898,514.07 : x - Step 2: Convert to fraction form
71,938,344.00/99,274,844.70 = 38,898,514.07/x - Step 3: Cross multiply
71,938,344.00x = 99,274,844.70 × 38,898,514.07 - Step 4: Simplify right side
71,938,344.00x = 3,861,643,943,235,921.50 - Step 5: Solve for x
x = 3,861,643,943,235,921.50/71,938,344.00 - Step 6: Final answer
x = 53,679,911.55
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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.