Finding the Fourth Proportional to 259,017,829.09, 388,728,220.25 and 180,786,509.63
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Solution
The fourth proportional to 259,017,829.09, 388,728,220.25 and 180,786,509.63 is: 271,320,388.94
Step by Step Solution
- Step 1: Write the proportion equation
259,017,829.09 : 388,728,220.25 = 180,786,509.63 : x - Step 2: Convert to fraction form
259,017,829.09/388,728,220.25 = 180,786,509.63/x - Step 3: Cross multiply
259,017,829.09x = 388,728,220.25 × 180,786,509.63 - Step 4: Simplify right side
259,017,829.09x = 70,276,818,130,831,816 - Step 5: Solve for x
x = 70,276,818,130,831,816/259,017,829.09 - Step 6: Final answer
x = 271,320,388.94
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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.