Finding the Fourth Proportional to 3,172,485,422.73, 4,378,134,877.68 and 1,743,607,176.62
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Solution
The fourth proportional to 3,172,485,422.73, 4,378,134,877.68 and 1,743,607,176.62 is: 2,406,235,608.92
Step by Step Solution
- Step 1: Write the proportion equation
3,172,485,422.73 : 4,378,134,877.68 = 1,743,607,176.62 : x - Step 2: Convert to fraction form
3,172,485,422.73/4,378,134,877.68 = 1,743,607,176.62/x - Step 3: Cross multiply
3,172,485,422.73x = 4,378,134,877.68 × 1,743,607,176.62 - Step 4: Simplify right side
3,172,485,422.73x = 7,633,747,392,944,119,808 - Step 5: Solve for x
x = 7,633,747,392,944,119,808/3,172,485,422.73 - Step 6: Final answer
x = 2,406,235,608.92
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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.