Finding the Fourth Proportional to 74,057,059.95, 102,267,439.74 and 55,439,878.92
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Solution
The fourth proportional to 74,057,059.95, 102,267,439.74 and 55,439,878.92 is: 76,558,460.20
Step by Step Solution
- Step 1: Write the proportion equation
74,057,059.95 : 102,267,439.74 = 55,439,878.92 : x - Step 2: Convert to fraction form
74,057,059.95/102,267,439.74 = 55,439,878.92/x - Step 3: Cross multiply
74,057,059.95x = 102,267,439.74 × 55,439,878.92 - Step 4: Simplify right side
74,057,059.95x = 5,669,694,476,643,996 - Step 5: Solve for x
x = 5,669,694,476,643,996/74,057,059.95 - Step 6: Final answer
x = 76,558,460.20
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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.