Finding the Fourth Proportional to 7,884,764.60, 11,803,527.30 and 4,688,245.40
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Solution
The fourth proportional to 7,884,764.60, 11,803,527.30 and 4,688,245.40 is: 7,018,323.99
Step by Step Solution
- Step 1: Write the proportion equation
7,884,764.60 : 11,803,527.30 = 4,688,245.40 : x - Step 2: Convert to fraction form
7,884,764.60/11,803,527.30 = 4,688,245.40/x - Step 3: Cross multiply
7,884,764.60x = 11,803,527.30 × 4,688,245.40 - Step 4: Simplify right side
7,884,764.60x = 55,337,832,567,999.43 - Step 5: Solve for x
x = 55,337,832,567,999.43/7,884,764.60 - Step 6: Final answer
x = 7,018,323.99
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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.