Finding the Fourth Proportional to 918,654,137.85, 1,377,981,206.78 and 823,951,351.65
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Solution
The fourth proportional to 918,654,137.85, 1,377,981,206.78 and 823,951,351.65 is: 1,235,927,027.48
Step by Step Solution
- Step 1: Write the proportion equation
918,654,137.85 : 1,377,981,206.78 = 823,951,351.65 : x - Step 2: Convert to fraction form
918,654,137.85/1,377,981,206.78 = 823,951,351.65/x - Step 3: Cross multiply
918,654,137.85x = 1,377,981,206.78 × 823,951,351.65 - Step 4: Simplify right side
918,654,137.85x = 1,135,389,477,870,559,488 - Step 5: Solve for x
x = 1,135,389,477,870,559,488/918,654,137.85 - Step 6: Final answer
x = 1,235,927,027.48
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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.