Finding the Fourth Proportional to 38,447,535.29, 53,057,405.34 and 20,806,425.09
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Solution
The fourth proportional to 38,447,535.29, 53,057,405.34 and 20,806,425.09 is: 28,712,761.99
Step by Step Solution
- Step 1: Write the proportion equation
38,447,535.29 : 53,057,405.34 = 20,806,425.09 : x - Step 2: Convert to fraction form
38,447,535.29/53,057,405.34 = 20,806,425.09/x - Step 3: Cross multiply
38,447,535.29x = 53,057,405.34 × 20,806,425.09 - Step 4: Simplify right side
38,447,535.29x = 1,103,934,929,676,476 - Step 5: Solve for x
x = 1,103,934,929,676,476/38,447,535.29 - Step 6: Final answer
x = 28,712,761.99
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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.