Finding the Fourth Proportional to 574,515,121.20, 861,772,681.80 and 399,163,210.80
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Solution
The fourth proportional to 574,515,121.20, 861,772,681.80 and 399,163,210.80 is: 598,744,816.20
Step by Step Solution
- Step 1: Write the proportion equation
574,515,121.20 : 861,772,681.80 = 399,163,210.80 : x - Step 2: Convert to fraction form
574,515,121.20/861,772,681.80 = 399,163,210.80/x - Step 3: Cross multiply
574,515,121.20x = 861,772,681.80 × 399,163,210.80 - Step 4: Simplify right side
574,515,121.20x = 343,987,950,647,014,720 - Step 5: Solve for x
x = 343,987,950,647,014,720/574,515,121.20 - Step 6: Final answer
x = 598,744,816.20
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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.