Finding the Fourth Proportional to 622,758,927.80, 934,138,391.70 and 393,435,356.60
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Solution
The fourth proportional to 622,758,927.80, 934,138,391.70 and 393,435,356.60 is: 590,153,034.90
Step by Step Solution
- Step 1: Write the proportion equation
622,758,927.80 : 934,138,391.70 = 393,435,356.60 : x - Step 2: Convert to fraction form
622,758,927.80/934,138,391.70 = 393,435,356.60/x - Step 3: Cross multiply
622,758,927.80x = 934,138,391.70 × 393,435,356.60 - Step 4: Simplify right side
622,758,927.80x = 367,523,071,252,240,000 - Step 5: Solve for x
x = 367,523,071,252,240,000/622,758,927.80 - Step 6: Final answer
x = 590,153,034.90
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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.