Finding the Fourth Proportional to 889,386,993.99, 1,227,354,168.05 and 492,935,578.61
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Solution
The fourth proportional to 889,386,993.99, 1,227,354,168.05 and 492,935,578.61 is: 680,251,162.95
Step by Step Solution
- Step 1: Write the proportion equation
889,386,993.99 : 1,227,354,168.05 = 492,935,578.61 : x - Step 2: Convert to fraction form
889,386,993.99/1,227,354,168.05 = 492,935,578.61/x - Step 3: Cross multiply
889,386,993.99x = 1,227,354,168.05 × 492,935,578.61 - Step 4: Simplify right side
889,386,993.99x = 605,006,536,978,520,576 - Step 5: Solve for x
x = 605,006,536,978,520,576/889,386,993.99 - Step 6: Final answer
x = 680,251,162.95
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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.