Finding the Fourth Proportional to 66,411,227.20, 99,658,831.20 and 39,117,467.20
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Solution
The fourth proportional to 66,411,227.20, 99,658,831.20 and 39,117,467.20 is: 58,700,933.94
Step by Step Solution
- Step 1: Write the proportion equation
66,411,227.20 : 99,658,831.20 = 39,117,467.20 : x - Step 2: Convert to fraction form
66,411,227.20/99,658,831.20 = 39,117,467.20/x - Step 3: Cross multiply
66,411,227.20x = 99,658,831.20 × 39,117,467.20 - Step 4: Simplify right side
66,411,227.20x = 3,898,401,060,656,337 - Step 5: Solve for x
x = 3,898,401,060,656,337/66,411,227.20 - Step 6: Final answer
x = 58,700,933.94
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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.