Finding the Fourth Proportional to 467,139,573.42, 644,348,858.99 and 299,610,479.15
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Solution
The fourth proportional to 467,139,573.42, 644,348,858.99 and 299,610,479.15 is: 413,267,642.84
Step by Step Solution
- Step 1: Write the proportion equation
467,139,573.42 : 644,348,858.99 = 299,610,479.15 : x - Step 2: Convert to fraction form
467,139,573.42/644,348,858.99 = 299,610,479.15/x - Step 3: Cross multiply
467,139,573.42x = 644,348,858.99 × 299,610,479.15 - Step 4: Simplify right side
467,139,573.42x = 193,053,670,383,360,544 - Step 5: Solve for x
x = 193,053,670,383,360,544/467,139,573.42 - Step 6: Final answer
x = 413,267,642.84
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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.