Finding the Fourth Proportional to 117,524,141.90, 176,286,212.85 and 71,539,988.30
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Solution
The fourth proportional to 117,524,141.90, 176,286,212.85 and 71,539,988.30 is: 107,309,982.45
Step by Step Solution
- Step 1: Write the proportion equation
117,524,141.90 : 176,286,212.85 = 71,539,988.30 : x - Step 2: Convert to fraction form
117,524,141.90/176,286,212.85 = 71,539,988.30/x - Step 3: Cross multiply
117,524,141.90x = 176,286,212.85 × 71,539,988.30 - Step 4: Simplify right side
117,524,141.90x = 12,611,513,604,740,308 - Step 5: Solve for x
x = 12,611,513,604,740,308/117,524,141.90 - Step 6: Final answer
x = 107,309,982.45
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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.