Finding the Fourth Proportional to 13,331,919.92, 19,998,916.60 and 4,357,379.12
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Solution
The fourth proportional to 13,331,919.92, 19,998,916.60 and 4,357,379.12 is: 6,536,407.52
Step by Step Solution
- Step 1: Write the proportion equation
13,331,919.92 : 19,998,916.60 = 4,357,379.12 : x - Step 2: Convert to fraction form
13,331,919.92/19,998,916.60 = 4,357,379.12/x - Step 3: Cross multiply
13,331,919.92x = 19,998,916.60 × 4,357,379.12 - Step 4: Simplify right side
13,331,919.92x = 87,142,861,615,461.41 - Step 5: Solve for x
x = 87,142,861,615,461.41/13,331,919.92 - Step 6: Final answer
x = 6,536,407.52
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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.