Finding the Fourth Proportional to 393,831,838.16, 543,518,918.06 and 224,293,244.52
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Solution
The fourth proportional to 393,831,838.16, 543,518,918.06 and 224,293,244.52 is: 309,542,321.82
Step by Step Solution
- Step 1: Write the proportion equation
393,831,838.16 : 543,518,918.06 = 224,293,244.52 : x - Step 2: Convert to fraction form
393,831,838.16/543,518,918.06 = 224,293,244.52/x - Step 3: Cross multiply
393,831,838.16x = 543,518,918.06 × 224,293,244.52 - Step 4: Simplify right side
393,831,838.16x = 121,907,621,589,677,424 - Step 5: Solve for x
x = 121,907,621,589,677,424/393,831,838.16 - Step 6: Final answer
x = 309,542,321.82
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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.