Finding the Fourth Proportional to 19,690,930.41, 27,176,222.79 and 10,989,663.53
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Solution
The fourth proportional to 19,690,930.41, 27,176,222.79 and 10,989,663.53 is: 15,167,264.23
Step by Step Solution
- Step 1: Write the proportion equation
19,690,930.41 : 27,176,222.79 = 10,989,663.53 : x - Step 2: Convert to fraction form
19,690,930.41/27,176,222.79 = 10,989,663.53/x - Step 3: Cross multiply
19,690,930.41x = 27,176,222.79 × 10,989,663.53 - Step 4: Simplify right side
19,690,930.41x = 298,657,544,342,536.75 - Step 5: Solve for x
x = 298,657,544,342,536.75/19,690,930.41 - Step 6: Final answer
x = 15,167,264.23
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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.