Finding the Fourth Proportional to 489,498,172.16, 734,031,794.97 and 259,413,350.00
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Solution
The fourth proportional to 489,498,172.16, 734,031,794.97 and 259,413,350.00 is: 389,005,838.57
Step by Step Solution
- Step 1: Write the proportion equation
489,498,172.16 : 734,031,794.97 = 259,413,350.00 : x - Step 2: Convert to fraction form
489,498,172.16/734,031,794.97 = 259,413,350.00/x - Step 3: Cross multiply
489,498,172.16x = 734,031,794.97 × 259,413,350.00 - Step 4: Simplify right side
489,498,172.16x = 190,417,646,936,010,688 - Step 5: Solve for x
x = 190,417,646,936,010,688/489,498,172.16 - Step 6: Final answer
x = 389,005,838.57
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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.