Finding the Fourth Proportional to 1,163,853,948.13, 1,746,010,901.66 and 426,930,694.99
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Solution
The fourth proportional to 1,163,853,948.13, 1,746,010,901.66 and 426,930,694.99 is: 640,480,404.69
Step by Step Solution
- Step 1: Write the proportion equation
1,163,853,948.13 : 1,746,010,901.66 = 426,930,694.99 : x - Step 2: Convert to fraction form
1,163,853,948.13/1,746,010,901.66 = 426,930,694.99/x - Step 3: Cross multiply
1,163,853,948.13x = 1,746,010,901.66 × 426,930,694.99 - Step 4: Simplify right side
1,163,853,948.13x = 745,425,647,699,320,704 - Step 5: Solve for x
x = 745,425,647,699,320,704/1,163,853,948.13 - Step 6: Final answer
x = 640,480,404.69
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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.