Finding the Fourth Proportional to 8,781,652.80, 13,153,816.80 and 7,288,660.80
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Solution
The fourth proportional to 8,781,652.80, 13,153,816.80 and 7,288,660.80 is: 10,917,501.64
Step by Step Solution
- Step 1: Write the proportion equation
8,781,652.80 : 13,153,816.80 = 7,288,660.80 : x - Step 2: Convert to fraction form
8,781,652.80/13,153,816.80 = 7,288,660.80/x - Step 3: Cross multiply
8,781,652.80x = 13,153,816.80 × 7,288,660.80 - Step 4: Simplify right side
8,781,652.80x = 95,873,708,880,541.44 - Step 5: Solve for x
x = 95,873,708,880,541.44/8,781,652.80 - Step 6: Final answer
x = 10,917,501.64
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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.