Finding the Fourth Proportional to 832,686,190.38, 1,149,106,950.36 and 461,408,221.62
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Solution
The fourth proportional to 832,686,190.38, 1,149,106,950.36 and 461,408,221.62 is: 636,743,350.07
Step by Step Solution
- Step 1: Write the proportion equation
832,686,190.38 : 1,149,106,950.36 = 461,408,221.62 : x - Step 2: Convert to fraction form
832,686,190.38/1,149,106,950.36 = 461,408,221.62/x - Step 3: Cross multiply
832,686,190.38x = 1,149,106,950.36 × 461,408,221.62 - Step 4: Simplify right side
832,686,190.38x = 530,207,394,416,789,184 - Step 5: Solve for x
x = 530,207,394,416,789,184/832,686,190.38 - Step 6: Final answer
x = 636,743,350.07
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Double scale
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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.