Finding the Fourth Proportional to 438,519,560.15, 657,560,471.31 and 143,376,234.99
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Solution
The fourth proportional to 438,519,560.15, 657,560,471.31 and 143,376,234.99 is: 214,992,792.17
Step by Step Solution
- Step 1: Write the proportion equation
438,519,560.15 : 657,560,471.31 = 143,376,234.99 : x - Step 2: Convert to fraction form
438,519,560.15/657,560,471.31 = 143,376,234.99/x - Step 3: Cross multiply
438,519,560.15x = 657,560,471.31 × 143,376,234.99 - Step 4: Simplify right side
438,519,560.15x = 94,278,544,654,677,712 - Step 5: Solve for x
x = 94,278,544,654,677,712/438,519,560.15 - Step 6: Final answer
x = 214,992,792.17
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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.