Finding the Fourth Proportional to 318,930,631.30, 446,805,214.70 and 318,930,631.30
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Solution
The fourth proportional to 318,930,631.30, 446,805,214.70 and 318,930,631.30 is: 446,805,214.70
Step by Step Solution
- Step 1: Write the proportion equation
318,930,631.30 : 446,805,214.70 = 318,930,631.30 : x - Step 2: Convert to fraction form
318,930,631.30/446,805,214.70 = 318,930,631.30/x - Step 3: Cross multiply
318,930,631.30x = 446,805,214.70 × 318,930,631.30 - Step 4: Simplify right side
318,930,631.30x = 142,499,869,192,403,040 - Step 5: Solve for x
x = 142,499,869,192,403,040/318,930,631.30 - Step 6: Final answer
x = 446,805,214.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.