Finding the Fourth Proportional to 18,438,865.05, 25,444,966.80 and 10,178,750.03
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Solution
The fourth proportional to 18,438,865.05, 25,444,966.80 and 10,178,750.03 is: 14,046,306.85
Step by Step Solution
- Step 1: Write the proportion equation
18,438,865.05 : 25,444,966.80 = 10,178,750.03 : x - Step 2: Convert to fraction form
18,438,865.05/25,444,966.80 = 10,178,750.03/x - Step 3: Cross multiply
18,438,865.05x = 25,444,966.80 × 10,178,750.03 - Step 4: Simplify right side
18,438,865.05x = 258,997,956,451,624.19 - Step 5: Solve for x
x = 258,997,956,451,624.19/18,438,865.05 - Step 6: Final answer
x = 14,046,306.85
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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.