Finding the Fourth Proportional to 456,161,212.62, 629,515,750.32 and 257,918,448.96
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Solution
The fourth proportional to 456,161,212.62, 629,515,750.32 and 257,918,448.96 is: 355,934,966.47
Step by Step Solution
- Step 1: Write the proportion equation
456,161,212.62 : 629,515,750.32 = 257,918,448.96 : x - Step 2: Convert to fraction form
456,161,212.62/629,515,750.32 = 257,918,448.96/x - Step 3: Cross multiply
456,161,212.62x = 629,515,750.32 × 257,918,448.96 - Step 4: Simplify right side
456,161,212.62x = 162,363,725,918,425,056 - Step 5: Solve for x
x = 162,363,725,918,425,056/456,161,212.62 - Step 6: Final answer
x = 355,934,966.47
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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.