Finding the Fourth Proportional to 1,144,644,285.78, 1,579,951,660.73 and 668,463,102.14
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Solution
The fourth proportional to 1,144,644,285.78, 1,579,951,660.73 and 668,463,102.14 is: 922,679,125.27
Step by Step Solution
- Step 1: Write the proportion equation
1,144,644,285.78 : 1,579,951,660.73 = 668,463,102.14 : x - Step 2: Convert to fraction form
1,144,644,285.78/1,579,951,660.73 = 668,463,102.14/x - Step 3: Cross multiply
1,144,644,285.78x = 1,579,951,660.73 × 668,463,102.14 - Step 4: Simplify right side
1,144,644,285.78x = 1,056,139,388,351,578,496 - Step 5: Solve for x
x = 1,056,139,388,351,578,496/1,144,644,285.78 - Step 6: Final answer
x = 922,679,125.27
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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.