Finding the Fourth Proportional to 1,688,162,269.09, 2,329,677,609.97 and 935,488,017.09
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Solution
The fourth proportional to 1,688,162,269.09, 2,329,677,609.97 and 935,488,017.09 is: 1,290,981,043.54
Step by Step Solution
- Step 1: Write the proportion equation
1,688,162,269.09 : 2,329,677,609.97 = 935,488,017.09 : x - Step 2: Convert to fraction form
1,688,162,269.09/2,329,677,609.97 = 935,488,017.09/x - Step 3: Cross multiply
1,688,162,269.09x = 2,329,677,609.97 × 935,488,017.09 - Step 4: Simplify right side
1,688,162,269.09x = 2,179,385,487,807,467,264 - Step 5: Solve for x
x = 2,179,385,487,807,467,264/1,688,162,269.09 - Step 6: Final answer
x = 1,290,981,043.54
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1.5x scale
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.