Finding the Fourth Proportional to 860,789,044.20, 1,289,270,378.70 and 745,997,788.20
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Solution
The fourth proportional to 860,789,044.20, 1,289,270,378.70 and 745,997,788.20 is: 1,117,338,629.46
Step by Step Solution
- Step 1: Write the proportion equation
860,789,044.20 : 1,289,270,378.70 = 745,997,788.20 : x - Step 2: Convert to fraction form
860,789,044.20/1,289,270,378.70 = 745,997,788.20/x - Step 3: Cross multiply
860,789,044.20x = 1,289,270,378.70 × 745,997,788.20 - Step 4: Simplify right side
860,789,044.20x = 961,792,850,901,976,448 - Step 5: Solve for x
x = 961,792,850,901,976,448/860,789,044.20 - Step 6: Final answer
x = 1,117,338,629.46
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1.5x scale
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.