Finding the Fourth Proportional to 38,867,759.70, 53,637,528.74 and 21,226,903.75
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Solution
The fourth proportional to 38,867,759.70, 53,637,528.74 and 21,226,903.75 is: 29,293,138.29
Step by Step Solution
- Step 1: Write the proportion equation
38,867,759.70 : 53,637,528.74 = 21,226,903.75 : x - Step 2: Convert to fraction form
38,867,759.70/53,637,528.74 = 21,226,903.75/x - Step 3: Cross multiply
38,867,759.70x = 53,637,528.74 × 21,226,903.75 - Step 4: Simplify right side
38,867,759.70x = 1,138,558,659,951,838.75 - Step 5: Solve for x
x = 1,138,558,659,951,838.75/38,867,759.70 - Step 6: Final answer
x = 29,293,138.29
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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.