Finding the Fourth Proportional to 79,621,770.41, 109,821,442.95 and 53,146,776.13
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Solution
The fourth proportional to 79,621,770.41, 109,821,442.95 and 53,146,776.13 is: 73,304,770.95
Step by Step Solution
- Step 1: Write the proportion equation
79,621,770.41 : 109,821,442.95 = 53,146,776.13 : x - Step 2: Convert to fraction form
79,621,770.41/109,821,442.95 = 53,146,776.13/x - Step 3: Cross multiply
79,621,770.41x = 109,821,442.95 × 53,146,776.13 - Step 4: Simplify right side
79,621,770.41x = 5,836,655,642,737,217 - Step 5: Solve for x
x = 5,836,655,642,737,217/79,621,770.41 - Step 6: Final answer
x = 73,304,770.95
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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.