Finding the Fourth Proportional to 5,420,950.76, 8,130,553.58 and 1,581,871.80
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Solution
The fourth proportional to 5,420,950.76, 8,130,553.58 and 1,581,871.80 is: 2,372,553.08
Step by Step Solution
- Step 1: Write the proportion equation
5,420,950.76 : 8,130,553.58 = 1,581,871.80 : x - Step 2: Convert to fraction form
5,420,950.76/8,130,553.58 = 1,581,871.80/x - Step 3: Cross multiply
5,420,950.76x = 8,130,553.58 × 1,581,871.80 - Step 4: Simplify right side
5,420,950.76x = 12,861,493,418,681.69 - Step 5: Solve for x
x = 12,861,493,418,681.69/5,420,950.76 - Step 6: Final answer
x = 2,372,553.08
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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.