Finding the Fourth Proportional to 38,997,528.30, 53,872,645.68 and 31,146,733.08
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Solution
The fourth proportional to 38,997,528.30, 53,872,645.68 and 31,146,733.08 is: 43,027,263.23
Step by Step Solution
- Step 1: Write the proportion equation
38,997,528.30 : 53,872,645.68 = 31,146,733.08 : x - Step 2: Convert to fraction form
38,997,528.30/53,872,645.68 = 31,146,733.08/x - Step 3: Cross multiply
38,997,528.30x = 53,872,645.68 × 31,146,733.08 - Step 4: Simplify right side
38,997,528.30x = 1,677,956,915,308,375 - Step 5: Solve for x
x = 1,677,956,915,308,375/38,997,528.30 - Step 6: Final answer
x = 43,027,263.23
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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.