Finding the Fourth Proportional to 257,385,163.36, 355,194,952.32 and 139,912,295.44
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Solution
The fourth proportional to 257,385,163.36, 355,194,952.32 and 139,912,295.44 is: 193,080,830.53
Step by Step Solution
- Step 1: Write the proportion equation
257,385,163.36 : 355,194,952.32 = 139,912,295.44 : x - Step 2: Convert to fraction form
257,385,163.36/355,194,952.32 = 139,912,295.44/x - Step 3: Cross multiply
257,385,163.36x = 355,194,952.32 × 139,912,295.44 - Step 4: Simplify right side
257,385,163.36x = 49,696,141,107,792,552 - Step 5: Solve for x
x = 49,696,141,107,792,552/257,385,163.36 - Step 6: Final answer
x = 193,080,830.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.