Finding the Fourth Proportional to 81,269,506.56, 121,896,794.88 and 27,417,285.12
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Solution
The fourth proportional to 81,269,506.56, 121,896,794.88 and 27,417,285.12 is: 41,123,409.28
Step by Step Solution
- Step 1: Write the proportion equation
81,269,506.56 : 121,896,794.88 = 27,417,285.12 : x - Step 2: Convert to fraction form
81,269,506.56/121,896,794.88 = 27,417,285.12/x - Step 3: Cross multiply
81,269,506.56x = 121,896,794.88 × 27,417,285.12 - Step 4: Simplify right side
81,269,506.56x = 3,342,079,180,439,116 - Step 5: Solve for x
x = 3,342,079,180,439,116/81,269,506.56 - Step 6: Final answer
x = 41,123,409.28
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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.