Finding the Fourth Proportional to 378,534,415.51, 568,001,671.99 and 268,580,678.61
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Solution
The fourth proportional to 378,534,415.51, 568,001,671.99 and 268,580,678.61 is: 403,012,958.05
Step by Step Solution
- Step 1: Write the proportion equation
378,534,415.51 : 568,001,671.99 = 268,580,678.61 : x - Step 2: Convert to fraction form
378,534,415.51/568,001,671.99 = 268,580,678.61/x - Step 3: Cross multiply
378,534,415.51x = 568,001,671.99 × 268,580,678.61 - Step 4: Simplify right side
378,534,415.51x = 152,554,274,516,147,360 - Step 5: Solve for x
x = 152,554,274,516,147,360/378,534,415.51 - Step 6: Final answer
x = 403,012,958.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.