Finding the Fourth Proportional to 6,520,122.90, 9,781,635.78 and 2,143,459.98
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Solution
The fourth proportional to 6,520,122.90, 9,781,635.78 and 2,143,459.98 is: 3,215,667.12
Step by Step Solution
- Step 1: Write the proportion equation
6,520,122.90 : 9,781,635.78 = 2,143,459.98 : x - Step 2: Convert to fraction form
6,520,122.90/9,781,635.78 = 2,143,459.98/x - Step 3: Cross multiply
6,520,122.90x = 9,781,635.78 × 2,143,459.98 - Step 4: Simplify right side
6,520,122.90x = 20,966,544,833,366.08 - Step 5: Solve for x
x = 20,966,544,833,366.08/6,520,122.90 - Step 6: Final answer
x = 3,215,667.12
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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.