Finding the Fourth Proportional to 18,953,753.07, 28,430,606.57 and 6,174,236.91
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Solution
The fourth proportional to 18,953,753.07, 28,430,606.57 and 6,174,236.91 is: 9,261,347.86
Step by Step Solution
- Step 1: Write the proportion equation
18,953,753.07 : 28,430,606.57 = 6,174,236.91 : x - Step 2: Convert to fraction form
18,953,753.07/28,430,606.57 = 6,174,236.91/x - Step 3: Cross multiply
18,953,753.07x = 28,430,606.57 × 6,174,236.91 - Step 4: Simplify right side
18,953,753.07x = 175,537,300,427,311.31 - Step 5: Solve for x
x = 175,537,300,427,311.31/18,953,753.07 - Step 6: Final answer
x = 9,261,347.86
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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.