Finding the Fourth Proportional to 895,941,821.48, 1,236,336,578.26 and 499,447,272.65
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Solution
The fourth proportional to 895,941,821.48, 1,236,336,578.26 and 499,447,272.65 is: 689,202,041.12
Step by Step Solution
- Step 1: Write the proportion equation
895,941,821.48 : 1,236,336,578.26 = 499,447,272.65 : x - Step 2: Convert to fraction form
895,941,821.48/1,236,336,578.26 = 499,447,272.65/x - Step 3: Cross multiply
895,941,821.48x = 1,236,336,578.26 × 499,447,272.65 - Step 4: Simplify right side
895,941,821.48x = 617,484,932,089,390,208 - Step 5: Solve for x
x = 617,484,932,089,390,208/895,941,821.48 - Step 6: Final answer
x = 689,202,041.12
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1.5x scale
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.