Finding the Fourth Proportional to 7,194,889.23, 9,928,926.79 and 3,931,724.62
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Solution
The fourth proportional to 7,194,889.23, 9,928,926.79 and 3,931,724.62 is: 5,425,768.86
Step by Step Solution
- Step 1: Write the proportion equation
7,194,889.23 : 9,928,926.79 = 3,931,724.62 : x - Step 2: Convert to fraction form
7,194,889.23/9,928,926.79 = 3,931,724.62/x - Step 3: Cross multiply
7,194,889.23x = 9,928,926.79 × 3,931,724.62 - Step 4: Simplify right side
7,194,889.23x = 39,037,805,910,420.57 - Step 5: Solve for x
x = 39,037,805,910,420.57/7,194,889.23 - Step 6: Final answer
x = 5,425,768.86
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1.5x scale
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.