Finding the Fourth Proportional to 7,027,686.96, 9,698,140.14 and 3,930,175.98
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Solution
The fourth proportional to 7,027,686.96, 9,698,140.14 and 3,930,175.98 is: 5,423,604.90
Step by Step Solution
- Step 1: Write the proportion equation
7,027,686.96 : 9,698,140.14 = 3,930,175.98 : x - Step 2: Convert to fraction form
7,027,686.96/9,698,140.14 = 3,930,175.98/x - Step 3: Cross multiply
7,027,686.96x = 9,698,140.14 × 3,930,175.98 - Step 4: Simplify right side
7,027,686.96x = 38,115,397,428,901.84 - Step 5: Solve for x
x = 38,115,397,428,901.84/7,027,686.96 - Step 6: Final answer
x = 5,423,604.90
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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.