Finding the Fourth Proportional to 11,488,653.90, 15,854,438.88 and 6,332,028.66
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Solution
The fourth proportional to 11,488,653.90, 15,854,438.88 and 6,332,028.66 is: 8,738,252.74
Step by Step Solution
- Step 1: Write the proportion equation
11,488,653.90 : 15,854,438.88 = 6,332,028.66 : x - Step 2: Convert to fraction form
11,488,653.90/15,854,438.88 = 6,332,028.66/x - Step 3: Cross multiply
11,488,653.90x = 15,854,438.88 × 6,332,028.66 - Step 4: Simplify right side
11,488,653.90x = 100,390,761,376,378.31 - Step 5: Solve for x
x = 100,390,761,376,378.31/11,488,653.90 - Step 6: Final answer
x = 8,738,252.74
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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.