Finding the Fourth Proportional to 399,172,220.16, 550,859,927.04 and 222,967,633.92
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Solution
The fourth proportional to 399,172,220.16, 550,859,927.04 and 222,967,633.92 is: 307,696,598.99
Step by Step Solution
- Step 1: Write the proportion equation
399,172,220.16 : 550,859,927.04 = 222,967,633.92 : x - Step 2: Convert to fraction form
399,172,220.16/550,859,927.04 = 222,967,633.92/x - Step 3: Cross multiply
399,172,220.16x = 550,859,927.04 × 222,967,633.92 - Step 4: Simplify right side
399,172,220.16x = 122,823,934,553,452,608 - Step 5: Solve for x
x = 122,823,934,553,452,608/399,172,220.16 - Step 6: Final answer
x = 307,696,598.99
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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.