Finding the Fourth Proportional to 8,909,750.80, 12,293,677.69 and 5,422,753.99
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Solution
The fourth proportional to 8,909,750.80, 12,293,677.69 and 5,422,753.99 is: 7,482,318.10
Step by Step Solution
- Step 1: Write the proportion equation
8,909,750.80 : 12,293,677.69 = 5,422,753.99 : x - Step 2: Convert to fraction form
8,909,750.80/12,293,677.69 = 5,422,753.99/x - Step 3: Cross multiply
8,909,750.80x = 12,293,677.69 × 5,422,753.99 - Step 4: Simplify right side
8,909,750.80x = 66,665,589,700,930.40 - Step 5: Solve for x
x = 66,665,589,700,930.40/8,909,750.80 - Step 6: Final answer
x = 7,482,318.10
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1.5x scale
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.