Finding the Fourth Proportional to 13,217,088.08, 18,239,896.05 and 7,416,298.85
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Solution
The fourth proportional to 13,217,088.08, 18,239,896.05 and 7,416,298.85 is: 10,234,668.88
Step by Step Solution
- Step 1: Write the proportion equation
13,217,088.08 : 18,239,896.05 = 7,416,298.85 : x - Step 2: Convert to fraction form
13,217,088.08/18,239,896.05 = 7,416,298.85/x - Step 3: Cross multiply
13,217,088.08x = 18,239,896.05 × 7,416,298.85 - Step 4: Simplify right side
13,217,088.08x = 135,272,520,049,123.55 - Step 5: Solve for x
x = 135,272,520,049,123.55/13,217,088.08 - Step 6: Final answer
x = 10,234,668.88
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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.