Finding the Fourth Proportional to 19,788,062.57, 27,306,866.13 and 10,967,137.97
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Solution
The fourth proportional to 19,788,062.57, 27,306,866.13 and 10,967,137.97 is: 15,134,284.49
Step by Step Solution
- Step 1: Write the proportion equation
19,788,062.57 : 27,306,866.13 = 10,967,137.97 : x - Step 2: Convert to fraction form
19,788,062.57/27,306,866.13 = 10,967,137.97/x - Step 3: Cross multiply
19,788,062.57x = 27,306,866.13 × 10,967,137.97 - Step 4: Simplify right side
19,788,062.57x = 299,478,168,376,029.94 - Step 5: Solve for x
x = 299,478,168,376,029.94/19,788,062.57 - Step 6: Final answer
x = 15,134,284.49
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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.