Finding the Fourth Proportional to 7,203,244.59, 9,940,266.05 and 3,939,988.68
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Solution
The fourth proportional to 7,203,244.59, 9,940,266.05 and 3,939,988.68 is: 5,437,068.70
Step by Step Solution
- Step 1: Write the proportion equation
7,203,244.59 : 9,940,266.05 = 3,939,988.68 : x - Step 2: Convert to fraction form
7,203,244.59/9,940,266.05 = 3,939,988.68/x - Step 3: Cross multiply
7,203,244.59x = 9,940,266.05 × 3,939,988.68 - Step 4: Simplify right side
7,203,244.59x = 39,164,535,693,488.38 - Step 5: Solve for x
x = 39,164,535,693,488.38/7,203,244.59 - Step 6: Final answer
x = 5,437,068.70
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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.