Finding the Fourth Proportional to 3,829,782.12, 5,285,110.04 and 2,110,909.47
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Solution
The fourth proportional to 3,829,782.12, 5,285,110.04 and 2,110,909.47 is: 2,913,060.97
Step by Step Solution
- Step 1: Write the proportion equation
3,829,782.12 : 5,285,110.04 = 2,110,909.47 : x - Step 2: Convert to fraction form
3,829,782.12/5,285,110.04 = 2,110,909.47/x - Step 3: Cross multiply
3,829,782.12x = 5,285,110.04 × 2,110,909.47 - Step 4: Simplify right side
3,829,782.12x = 11,156,388,833,428.08 - Step 5: Solve for x
x = 11,156,388,833,428.08/3,829,782.12 - Step 6: Final answer
x = 2,913,060.97
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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.