Finding the Fourth Proportional to 19,957,780.90, 27,541,685.99 and 11,137,139.39
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Solution
The fourth proportional to 19,957,780.90, 27,541,685.99 and 11,137,139.39 is: 15,369,223.53
Step by Step Solution
- Step 1: Write the proportion equation
19,957,780.90 : 27,541,685.99 = 11,137,139.39 : x - Step 2: Convert to fraction form
19,957,780.90/27,541,685.99 = 11,137,139.39/x - Step 3: Cross multiply
19,957,780.90x = 27,541,685.99 × 11,137,139.39 - Step 4: Simplify right side
19,957,780.90x = 306,735,595,796,374.56 - Step 5: Solve for x
x = 306,735,595,796,374.56/19,957,780.90 - Step 6: Final answer
x = 15,369,223.53
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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.