Finding the Fourth Proportional to 5,422,294.10, 7,482,842.20 and 2,974,860.68
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Solution
The fourth proportional to 5,422,294.10, 7,482,842.20 and 2,974,860.68 is: 4,105,349.61
Step by Step Solution
- Step 1: Write the proportion equation
5,422,294.10 : 7,482,842.20 = 2,974,860.68 : x - Step 2: Convert to fraction form
5,422,294.10/7,482,842.20 = 2,974,860.68/x - Step 3: Cross multiply
5,422,294.10x = 7,482,842.20 × 2,974,860.68 - Step 4: Simplify right side
5,422,294.10x = 22,260,413,001,729.06 - Step 5: Solve for x
x = 22,260,413,001,729.06/5,422,294.10 - Step 6: Final answer
x = 4,105,349.61
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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.