Finding the Fourth Proportional to 1,042,472,174.68, 1,438,639,694.63 and 613,339,419.03
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Solution
The fourth proportional to 1,042,472,174.68, 1,438,639,694.63 and 613,339,419.03 is: 846,424,927.14
Step by Step Solution
- Step 1: Write the proportion equation
1,042,472,174.68 : 1,438,639,694.63 = 613,339,419.03 : x - Step 2: Convert to fraction form
1,042,472,174.68/1,438,639,694.63 = 613,339,419.03/x - Step 3: Cross multiply
1,042,472,174.68x = 1,438,639,694.63 × 613,339,419.03 - Step 4: Simplify right side
1,042,472,174.68x = 882,374,434,497,860,864 - Step 5: Solve for x
x = 882,374,434,497,860,864/1,042,472,174.68 - Step 6: Final answer
x = 846,424,927.14
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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.