Finding the Fourth Proportional to 6,645,828.13, 9,172,949.10 and 4,328,495.08
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Solution
The fourth proportional to 6,645,828.13, 9,172,949.10 and 4,328,495.08 is: 5,974,434.53
Step by Step Solution
- Step 1: Write the proportion equation
6,645,828.13 : 9,172,949.10 = 4,328,495.08 : x - Step 2: Convert to fraction form
6,645,828.13/9,172,949.10 = 4,328,495.08/x - Step 3: Cross multiply
6,645,828.13x = 9,172,949.10 × 4,328,495.08 - Step 4: Simplify right side
6,645,828.13x = 39,705,065,048,440.43 - Step 5: Solve for x
x = 39,705,065,048,440.43/6,645,828.13 - Step 6: Final answer
x = 5,974,434.53
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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.