Finding the Fourth Proportional to 641,703,717,657.30, 885,572,367,735.98 and 352,682,221,555.92
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Solution
The fourth proportional to 641,703,717,657.30, 885,572,367,735.98 and 352,682,221,555.92 is: 486,713,137,866.62
Step by Step Solution
- Step 1: Write the proportion equation
641,703,717,657.30 : 885,572,367,735.98 = 352,682,221,555.92 : x - Step 2: Convert to fraction form
641,703,717,657.30/885,572,367,735.98 = 352,682,221,555.92/x - Step 3: Cross multiply
641,703,717,657.30x = 885,572,367,735.98 × 352,682,221,555.92 - Step 4: Simplify right side
641,703,717,657.30x = 312,325,630,001,661,524,049,920 - Step 5: Solve for x
x = 312,325,630,001,661,524,049,920/641,703,717,657.30 - Step 6: Final answer
x = 486,713,137,866.62
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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.