Finding the Fourth Proportional to 629,657,461.87, 868,930,315.68 and 347,399,888.47
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Solution
The fourth proportional to 629,657,461.87, 868,930,315.68 and 347,399,888.47 is: 479,413,511.37
Step by Step Solution
- Step 1: Write the proportion equation
629,657,461.87 : 868,930,315.68 = 347,399,888.47 : x - Step 2: Convert to fraction form
629,657,461.87/868,930,315.68 = 347,399,888.47/x - Step 3: Cross multiply
629,657,461.87x = 868,930,315.68 × 347,399,888.47 - Step 4: Simplify right side
629,657,461.87x = 301,866,294,755,433,920 - Step 5: Solve for x
x = 301,866,294,755,433,920/629,657,461.87 - Step 6: Final answer
x = 479,413,511.37
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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.