Finding the Fourth Proportional to 489,120,648.53, 674,989,430.31 and 266,103,929.97
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Solution
The fourth proportional to 489,120,648.53, 674,989,430.31 and 266,103,929.97 is: 367,225,020.32
Step by Step Solution
- Step 1: Write the proportion equation
489,120,648.53 : 674,989,430.31 = 266,103,929.97 : x - Step 2: Convert to fraction form
489,120,648.53/674,989,430.31 = 266,103,929.97/x - Step 3: Cross multiply
489,120,648.53x = 674,989,430.31 × 266,103,929.97 - Step 4: Simplify right side
489,120,648.53x = 179,617,340,093,702,432 - Step 5: Solve for x
x = 179,617,340,093,702,432/489,120,648.53 - Step 6: Final answer
x = 367,225,020.32
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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.