Finding the Fourth Proportional to 114,040,303.92, 157,378,938.63 and 64,479,612.99
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Solution
The fourth proportional to 114,040,303.92, 157,378,938.63 and 64,479,612.99 is: 88,983,742.65
Step by Step Solution
- Step 1: Write the proportion equation
114,040,303.92 : 157,378,938.63 = 64,479,612.99 : x - Step 2: Convert to fraction form
114,040,303.92/157,378,938.63 = 64,479,612.99/x - Step 3: Cross multiply
114,040,303.92x = 157,378,938.63 × 64,479,612.99 - Step 4: Simplify right side
114,040,303.92x = 10,147,733,055,639,360 - Step 5: Solve for x
x = 10,147,733,055,639,360/114,040,303.92 - Step 6: Final answer
x = 88,983,742.65
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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.