Finding the Fourth Proportional to 38,988,205.17, 53,801,677.44 and 21,343,725.18
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Solution
The fourth proportional to 38,988,205.17, 53,801,677.44 and 21,343,725.18 is: 29,453,220.86
Step by Step Solution
- Step 1: Write the proportion equation
38,988,205.17 : 53,801,677.44 = 21,343,725.18 : x - Step 2: Convert to fraction form
38,988,205.17/53,801,677.44 = 21,343,725.18/x - Step 3: Cross multiply
38,988,205.17x = 53,801,677.44 × 21,343,725.18 - Step 4: Simplify right side
38,988,205.17x = 1,148,328,217,502,365.75 - Step 5: Solve for x
x = 1,148,328,217,502,365.75/38,988,205.17 - Step 6: Final answer
x = 29,453,220.86
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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.