Finding the Fourth Proportional to 19,544,689.84, 26,960,466.08 and 12,189,753.96
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Solution
The fourth proportional to 19,544,689.84, 26,960,466.08 and 12,189,753.96 is: 16,814,871.50
Step by Step Solution
- Step 1: Write the proportion equation
19,544,689.84 : 26,960,466.08 = 12,189,753.96 : x - Step 2: Convert to fraction form
19,544,689.84/26,960,466.08 = 12,189,753.96/x - Step 3: Cross multiply
19,544,689.84x = 26,960,466.08 × 12,189,753.96 - Step 4: Simplify right side
19,544,689.84x = 328,641,448,162,125.69 - Step 5: Solve for x
x = 328,641,448,162,125.69/19,544,689.84 - Step 6: Final answer
x = 16,814,871.50
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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.