Finding the Fourth Proportional to 454,172,135.81, 626,757,821.99 and 245,328,370.72
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Solution
The fourth proportional to 454,172,135.81, 626,757,821.99 and 245,328,370.72 is: 338,553,299.91
Step by Step Solution
- Step 1: Write the proportion equation
454,172,135.81 : 626,757,821.99 = 245,328,370.72 : x - Step 2: Convert to fraction form
454,172,135.81/626,757,821.99 = 245,328,370.72/x - Step 3: Cross multiply
454,172,135.81x = 626,757,821.99 × 245,328,370.72 - Step 4: Simplify right side
454,172,135.81x = 153,761,475,302,948,928 - Step 5: Solve for x
x = 153,761,475,302,948,928/454,172,135.81 - Step 6: Final answer
x = 338,553,299.91
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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.