Finding the Fourth Proportional to 275,425,337.40, 413,138,006.10 and 259,641,539.70
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Solution
The fourth proportional to 275,425,337.40, 413,138,006.10 and 259,641,539.70 is: 389,462,309.55
Step by Step Solution
- Step 1: Write the proportion equation
275,425,337.40 : 413,138,006.10 = 259,641,539.70 : x - Step 2: Convert to fraction form
275,425,337.40/413,138,006.10 = 259,641,539.70/x - Step 3: Cross multiply
275,425,337.40x = 413,138,006.10 × 259,641,539.70 - Step 4: Simplify right side
275,425,337.40x = 107,267,788,012,392,000 - Step 5: Solve for x
x = 107,267,788,012,392,000/275,425,337.40 - Step 6: Final answer
x = 389,462,309.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.