Finding the Fourth Proportional to 9,471,056.20, 14,207,621.10 and 9,172,457.80
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Solution
The fourth proportional to 9,471,056.20, 14,207,621.10 and 9,172,457.80 is: 13,759,690.81
Step by Step Solution
- Step 1: Write the proportion equation
9,471,056.20 : 14,207,621.10 = 9,172,457.80 : x - Step 2: Convert to fraction form
9,471,056.20/14,207,621.10 = 9,172,457.80/x - Step 3: Cross multiply
9,471,056.20x = 14,207,621.10 × 9,172,457.80 - Step 4: Simplify right side
9,471,056.20x = 130,318,804,978,139.59 - Step 5: Solve for x
x = 130,318,804,978,139.59/9,471,056.20 - Step 6: Final answer
x = 13,759,690.81
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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.