Finding the Fourth Proportional to 895,121,418.11, 1,235,332,844.51 and 518,875,140.44
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Solution
The fourth proportional to 895,121,418.11, 1,235,332,844.51 and 518,875,140.44 is: 716,085,539.03
Step by Step Solution
- Step 1: Write the proportion equation
895,121,418.11 : 1,235,332,844.51 = 518,875,140.44 : x - Step 2: Convert to fraction form
895,121,418.11/1,235,332,844.51 = 518,875,140.44/x - Step 3: Cross multiply
895,121,418.11x = 1,235,332,844.51 × 518,875,140.44 - Step 4: Simplify right side
895,121,418.11x = 640,983,503,180,391,424 - Step 5: Solve for x
x = 640,983,503,180,391,424/895,121,418.11 - Step 6: Final answer
x = 716,085,539.03
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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.