Finding the Fourth Proportional to 624,125,336.84, 861,290,814.92 and 359,806,069.62
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Solution
The fourth proportional to 624,125,336.84, 861,290,814.92 and 359,806,069.62 is: 496,531,136.65
Step by Step Solution
- Step 1: Write the proportion equation
624,125,336.84 : 861,290,814.92 = 359,806,069.62 : x - Step 2: Convert to fraction form
624,125,336.84/861,290,814.92 = 359,806,069.62/x - Step 3: Cross multiply
624,125,336.84x = 861,290,814.92 × 359,806,069.62 - Step 4: Simplify right side
624,125,336.84x = 309,897,662,916,172,032 - Step 5: Solve for x
x = 309,897,662,916,172,032/624,125,336.84 - Step 6: Final answer
x = 496,531,136.65
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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.