Finding the Fourth Proportional to 6,787,640.41, 9,366,943.77 and 3,731,854.66
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Solution
The fourth proportional to 6,787,640.41, 9,366,943.77 and 3,731,854.66 is: 5,149,959.43
Step by Step Solution
- Step 1: Write the proportion equation
6,787,640.41 : 9,366,943.77 = 3,731,854.66 : x - Step 2: Convert to fraction form
6,787,640.41/9,366,943.77 = 3,731,854.66/x - Step 3: Cross multiply
6,787,640.41x = 9,366,943.77 × 3,731,854.66 - Step 4: Simplify right side
6,787,640.41x = 34,956,072,758,032.47 - Step 5: Solve for x
x = 34,956,072,758,032.47/6,787,640.41 - Step 6: Final answer
x = 5,149,959.43
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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.