Finding the Fourth Proportional to 548,385,916.55, 756,772,564.84 and 313,441,621.54
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Solution
The fourth proportional to 548,385,916.55, 756,772,564.84 and 313,441,621.54 is: 432,549,437.72
Step by Step Solution
- Step 1: Write the proportion equation
548,385,916.55 : 756,772,564.84 = 313,441,621.54 : x - Step 2: Convert to fraction form
548,385,916.55/756,772,564.84 = 313,441,621.54/x - Step 3: Cross multiply
548,385,916.55x = 756,772,564.84 × 313,441,621.54 - Step 4: Simplify right side
548,385,916.55x = 237,204,019,857,758,880 - Step 5: Solve for x
x = 237,204,019,857,758,880/548,385,916.55 - Step 6: Final answer
x = 432,549,437.72
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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.