Finding the Fourth Proportional to 377,242,109.39, 520,594,134.97 and 209,974,769.81
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Solution
The fourth proportional to 377,242,109.39, 520,594,134.97 and 209,974,769.81 is: 289,765,195.70
Step by Step Solution
- Step 1: Write the proportion equation
377,242,109.39 : 520,594,134.97 = 209,974,769.81 : x - Step 2: Convert to fraction form
377,242,109.39/520,594,134.97 = 209,974,769.81/x - Step 3: Cross multiply
377,242,109.39x = 520,594,134.97 × 209,974,769.81 - Step 4: Simplify right side
377,242,109.39x = 109,311,633,654,761,824 - Step 5: Solve for x
x = 109,311,633,654,761,824/377,242,109.39 - Step 6: Final answer
x = 289,765,195.70
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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.