Finding the Fourth Proportional to 1,174,121,224.43, 1,620,288,332.18 and 645,494,204.53
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Solution
The fourth proportional to 1,174,121,224.43, 1,620,288,332.18 and 645,494,204.53 is: 890,782,575.36
Step by Step Solution
- Step 1: Write the proportion equation
1,174,121,224.43 : 1,620,288,332.18 = 645,494,204.53 : x - Step 2: Convert to fraction form
1,174,121,224.43/1,620,288,332.18 = 645,494,204.53/x - Step 3: Cross multiply
1,174,121,224.43x = 1,620,288,332.18 × 645,494,204.53 - Step 4: Simplify right side
1,174,121,224.43x = 1,045,886,728,084,105,088 - Step 5: Solve for x
x = 1,045,886,728,084,105,088/1,174,121,224.43 - Step 6: Final answer
x = 890,782,575.36
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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.