Finding the Fourth Proportional to 15,383,657.45, 21,235,984.01 and 9,585,303.99
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Solution
The fourth proportional to 15,383,657.45, 21,235,984.01 and 9,585,303.99 is: 13,231,792.42
Step by Step Solution
- Step 1: Write the proportion equation
15,383,657.45 : 21,235,984.01 = 9,585,303.99 : x - Step 2: Convert to fraction form
15,383,657.45/21,235,984.01 = 9,585,303.99/x - Step 3: Cross multiply
15,383,657.45x = 21,235,984.01 × 9,585,303.99 - Step 4: Simplify right side
15,383,657.45x = 203,553,362,108,522.75 - Step 5: Solve for x
x = 203,553,362,108,522.75/15,383,657.45 - Step 6: Final answer
x = 13,231,792.42
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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.