Finding the Fourth Proportional to 38,676,315.46, 53,374,325.22 and 21,273,117.46
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Solution
The fourth proportional to 38,676,315.46, 53,374,325.22 and 21,273,117.46 is: 29,357,457.56
Step by Step Solution
- Step 1: Write the proportion equation
38,676,315.46 : 53,374,325.22 = 21,273,117.46 : x - Step 2: Convert to fraction form
38,676,315.46/53,374,325.22 = 21,273,117.46/x - Step 3: Cross multiply
38,676,315.46x = 53,374,325.22 × 21,273,117.46 - Step 4: Simplify right side
38,676,315.46x = 1,135,438,289,753,300.25 - Step 5: Solve for x
x = 1,135,438,289,753,300.25/38,676,315.46 - Step 6: Final answer
x = 29,357,457.56
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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.