Finding the Fourth Proportional to 10,127,901.60, 15,189,467.76 and 2,937,538.08
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Solution
The fourth proportional to 10,127,901.60, 15,189,467.76 and 2,937,538.08 is: 4,405,615.47
Step by Step Solution
- Step 1: Write the proportion equation
10,127,901.60 : 15,189,467.76 = 2,937,538.08 : x - Step 2: Convert to fraction form
10,127,901.60/15,189,467.76 = 2,937,538.08/x - Step 3: Cross multiply
10,127,901.60x = 15,189,467.76 × 2,937,538.08 - Step 4: Simplify right side
10,127,901.60x = 44,619,639,959,932.30 - Step 5: Solve for x
x = 44,619,639,959,932.30/10,127,901.60 - Step 6: Final answer
x = 4,405,615.47
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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.