Finding the Fourth Proportional to 88,216,078.16, 121,720,348.68 and 51,539,563.28
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Solution
The fourth proportional to 88,216,078.16, 121,720,348.68 and 51,539,563.28 is: 71,114,174.92
Step by Step Solution
- Step 1: Write the proportion equation
88,216,078.16 : 121,720,348.68 = 51,539,563.28 : x - Step 2: Convert to fraction form
88,216,078.16/121,720,348.68 = 51,539,563.28/x - Step 3: Cross multiply
88,216,078.16x = 121,720,348.68 × 51,539,563.28 - Step 4: Simplify right side
88,216,078.16x = 6,273,413,613,256,525 - Step 5: Solve for x
x = 6,273,413,613,256,525/88,216,078.16 - Step 6: Final answer
x = 71,114,174.92
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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.