Finding the Fourth Proportional to 27,201,887.70, 40,802,831.55 and 7,007,129.70
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Solution
The fourth proportional to 27,201,887.70, 40,802,831.55 and 7,007,129.70 is: 10,510,694.55
Step by Step Solution
- Step 1: Write the proportion equation
27,201,887.70 : 40,802,831.55 = 7,007,129.70 : x - Step 2: Convert to fraction form
27,201,887.70/40,802,831.55 = 7,007,129.70/x - Step 3: Cross multiply
27,201,887.70x = 40,802,831.55 × 7,007,129.70 - Step 4: Simplify right side
27,201,887.70x = 285,910,732,798,102 - Step 5: Solve for x
x = 285,910,732,798,102/27,201,887.70 - Step 6: Final answer
x = 10,510,694.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.