Finding the Fourth Proportional to 221,282,844.74, 305,410,297.70 and 131,980,513.32
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Solution
The fourth proportional to 221,282,844.74, 305,410,297.70 and 131,980,513.32 is: 182,156,949.00
Step by Step Solution
- Step 1: Write the proportion equation
221,282,844.74 : 305,410,297.70 = 131,980,513.32 : x - Step 2: Convert to fraction form
221,282,844.74/305,410,297.70 = 131,980,513.32/x - Step 3: Cross multiply
221,282,844.74x = 305,410,297.70 × 131,980,513.32 - Step 4: Simplify right side
221,282,844.74x = 40,308,207,863,989,960 - Step 5: Solve for x
x = 40,308,207,863,989,960/221,282,844.74 - Step 6: Final answer
x = 182,156,949.00
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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.