Finding the Fourth Proportional to 18,960,541.57, 26,158,102.18 and 11,011,730.79
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Solution
The fourth proportional to 18,960,541.57, 26,158,102.18 and 11,011,730.79 is: 15,191,864.54
Step by Step Solution
- Step 1: Write the proportion equation
18,960,541.57 : 26,158,102.18 = 11,011,730.79 : x - Step 2: Convert to fraction form
18,960,541.57/26,158,102.18 = 11,011,730.79/x - Step 3: Cross multiply
18,960,541.57x = 26,158,102.18 × 11,011,730.79 - Step 4: Simplify right side
18,960,541.57x = 288,045,979,183,472.12 - Step 5: Solve for x
x = 288,045,979,183,472.12/18,960,541.57 - Step 6: Final answer
x = 15,191,864.54
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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.