Finding the Fourth Proportional to 624,125,334.85, 861,290,812.17 and 359,806,067.62
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Solution
The fourth proportional to 624,125,334.85, 861,290,812.17 and 359,806,067.62 is: 496,531,133.89
Step by Step Solution
- Step 1: Write the proportion equation
624,125,334.85 : 861,290,812.17 = 359,806,067.62 : x - Step 2: Convert to fraction form
624,125,334.85/861,290,812.17 = 359,806,067.62/x - Step 3: Cross multiply
624,125,334.85x = 861,290,812.17 × 359,806,067.62 - Step 4: Simplify right side
624,125,334.85x = 309,897,660,201,970,496 - Step 5: Solve for x
x = 309,897,660,201,970,496/624,125,334.85 - Step 6: Final answer
x = 496,531,133.89
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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.