Finding the Fourth Proportional to 5,432,759.60, 8,149,139.40 and 1,646,430.80
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Solution
The fourth proportional to 5,432,759.60, 8,149,139.40 and 1,646,430.80 is: 2,469,646.20
Step by Step Solution
- Step 1: Write the proportion equation
5,432,759.60 : 8,149,139.40 = 1,646,430.80 : x - Step 2: Convert to fraction form
5,432,759.60/8,149,139.40 = 1,646,430.80/x - Step 3: Cross multiply
5,432,759.60x = 8,149,139.40 × 1,646,430.80 - Step 4: Simplify right side
5,432,759.60x = 13,416,994,101,653.52 - Step 5: Solve for x
x = 13,416,994,101,653.52/5,432,759.60 - Step 6: Final answer
x = 2,469,646.20
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1.5x scale
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.