Finding the Fourth Proportional to 70,420,549.49, 97,068,072.48 and 55,511,560.41
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Solution
The fourth proportional to 70,420,549.49, 97,068,072.48 and 55,511,560.41 is: 76,517,439.99
Step by Step Solution
- Step 1: Write the proportion equation
70,420,549.49 : 97,068,072.48 = 55,511,560.41 : x - Step 2: Convert to fraction form
70,420,549.49/97,068,072.48 = 55,511,560.41/x - Step 3: Cross multiply
70,420,549.49x = 97,068,072.48 × 55,511,560.41 - Step 4: Simplify right side
70,420,549.49x = 5,388,400,169,355,778 - Step 5: Solve for x
x = 5,388,400,169,355,778/70,420,549.49 - Step 6: Final answer
x = 76,517,439.99
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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.