Finding the Fourth Proportional to 10,299,620.40, 15,449,430.60 and 5,764,657.20
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Solution
The fourth proportional to 10,299,620.40, 15,449,430.60 and 5,764,657.20 is: 8,646,985.80
Step by Step Solution
- Step 1: Write the proportion equation
10,299,620.40 : 15,449,430.60 = 5,764,657.20 : x - Step 2: Convert to fraction form
10,299,620.40/15,449,430.60 = 5,764,657.20/x - Step 3: Cross multiply
10,299,620.40x = 15,449,430.60 × 5,764,657.20 - Step 4: Simplify right side
10,299,620.40x = 89,060,671,344,190.33 - Step 5: Solve for x
x = 89,060,671,344,190.33/10,299,620.40 - Step 6: Final answer
x = 8,646,985.80
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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.