Finding the Fourth Proportional to 209,673,185.66, 289,349,873.12 and 115,585,267.67
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Solution
The fourth proportional to 209,673,185.66, 289,349,873.12 and 115,585,267.67 is: 159,508,152.80
Step by Step Solution
- Step 1: Write the proportion equation
209,673,185.66 : 289,349,873.12 = 115,585,267.67 : x - Step 2: Convert to fraction form
209,673,185.66/289,349,873.12 = 115,585,267.67/x - Step 3: Cross multiply
209,673,185.66x = 289,349,873.12 × 115,585,267.67 - Step 4: Simplify right side
209,673,185.66x = 33,444,582,535,758,416 - Step 5: Solve for x
x = 33,444,582,535,758,416/209,673,185.66 - Step 6: Final answer
x = 159,508,152.80
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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.