Finding the Fourth Proportional to 9,720,707.91, 13,414,689.50 and 5,369,704.08
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Solution
The fourth proportional to 9,720,707.91, 13,414,689.50 and 5,369,704.08 is: 7,410,253.82
Step by Step Solution
- Step 1: Write the proportion equation
9,720,707.91 : 13,414,689.50 = 5,369,704.08 : x - Step 2: Convert to fraction form
9,720,707.91/13,414,689.50 = 5,369,704.08/x - Step 3: Cross multiply
9,720,707.91x = 13,414,689.50 × 5,369,704.08 - Step 4: Simplify right side
9,720,707.91x = 72,032,912,913,234.64 - Step 5: Solve for x
x = 72,032,912,913,234.64/9,720,707.91 - Step 6: Final answer
x = 7,410,253.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.