Finding the Fourth Proportional to 664,305,721.70, 996,458,582.55 and 492,118,837.70
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Solution
The fourth proportional to 664,305,721.70, 996,458,582.55 and 492,118,837.70 is: 738,178,256.55
Step by Step Solution
- Step 1: Write the proportion equation
664,305,721.70 : 996,458,582.55 = 492,118,837.70 : x - Step 2: Convert to fraction form
664,305,721.70/996,458,582.55 = 492,118,837.70/x - Step 3: Cross multiply
664,305,721.70x = 996,458,582.55 × 492,118,837.70 - Step 4: Simplify right side
664,305,721.70x = 490,376,039,460,695,488 - Step 5: Solve for x
x = 490,376,039,460,695,488/664,305,721.70 - Step 6: Final answer
x = 738,178,256.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.