Finding the Fourth Proportional to 66,461,488.24, 91,728,859.24 and 39,640,538
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Solution
The fourth proportional to 66,461,488.24, 91,728,859.24 and 39,640,538 is: 54,711,103.03
Step by Step Solution
- Step 1: Write the proportion equation
66,461,488.24 : 91,728,859.24 = 39,640,538 : x - Step 2: Convert to fraction form
66,461,488.24/91,728,859.24 = 39,640,538/x - Step 3: Cross multiply
66,461,488.24x = 91,728,859.24 × 39,640,538 - Step 4: Simplify right side
66,461,488.24x = 3,636,181,330,399,871 - Step 5: Solve for x
x = 3,636,181,330,399,871/66,461,488.24 - Step 6: Final answer
x = 54,711,103.03
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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.