Finding the Fourth Proportional to 27,991,148.92, 38,627,964.84 and 15,602,027.92
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Solution
The fourth proportional to 27,991,148.92, 38,627,964.84 and 15,602,027.92 is: 21,530,898.49
Step by Step Solution
- Step 1: Write the proportion equation
27,991,148.92 : 38,627,964.84 = 15,602,027.92 : x - Step 2: Convert to fraction form
27,991,148.92/38,627,964.84 = 15,602,027.92/x - Step 3: Cross multiply
27,991,148.92x = 38,627,964.84 × 15,602,027.92 - Step 4: Simplify right side
27,991,148.92x = 602,674,585,926,458.38 - Step 5: Solve for x
x = 602,674,585,926,458.38/27,991,148.92 - Step 6: Final answer
x = 21,530,898.49
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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.