Finding the Fourth Proportional to 293,419,945.80, 440,129,918.70 and 132,176,809.80
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Solution
The fourth proportional to 293,419,945.80, 440,129,918.70 and 132,176,809.80 is: 198,265,214.70
Step by Step Solution
- Step 1: Write the proportion equation
293,419,945.80 : 440,129,918.70 = 132,176,809.80 : x - Step 2: Convert to fraction form
293,419,945.80/440,129,918.70 = 132,176,809.80/x - Step 3: Cross multiply
293,419,945.80x = 440,129,918.70 × 132,176,809.80 - Step 4: Simplify right side
293,419,945.80x = 58,174,968,551,299,360 - Step 5: Solve for x
x = 58,174,968,551,299,360/293,419,945.80 - Step 6: Final answer
x = 198,265,214.70
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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.