Finding the Fourth Proportional to 19,049,640.18, 26,240,434.44 and 15,368,248.68
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Solution
The fourth proportional to 19,049,640.18, 26,240,434.44 and 15,368,248.68 is: 21,169,403.63
Step by Step Solution
- Step 1: Write the proportion equation
19,049,640.18 : 26,240,434.44 = 15,368,248.68 : x - Step 2: Convert to fraction form
19,049,640.18/26,240,434.44 = 15,368,248.68/x - Step 3: Cross multiply
19,049,640.18x = 26,240,434.44 × 15,368,248.68 - Step 4: Simplify right side
19,049,640.18x = 403,269,521,945,156.56 - Step 5: Solve for x
x = 403,269,521,945,156.56/19,049,640.18 - Step 6: Final answer
x = 21,169,403.63
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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.