Finding the Fourth Proportional to 12,774,532.60, 19,130,306.10 and 8,491,511.80
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Solution
The fourth proportional to 12,774,532.60, 19,130,306.10 and 8,491,511.80 is: 12,716,333.75
Step by Step Solution
- Step 1: Write the proportion equation
12,774,532.60 : 19,130,306.10 = 8,491,511.80 : x - Step 2: Convert to fraction form
12,774,532.60/19,130,306.10 = 8,491,511.80/x - Step 3: Cross multiply
12,774,532.60x = 19,130,306.10 × 8,491,511.80 - Step 4: Simplify right side
12,774,532.60x = 162,445,219,985,762 - Step 5: Solve for x
x = 162,445,219,985,762/12,774,532.60 - Step 6: Final answer
x = 12,716,333.75
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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.