Finding the Fourth Proportional to 118,144,416.20, 177,216,624.30 and 69,572,409.80
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Solution
The fourth proportional to 118,144,416.20, 177,216,624.30 and 69,572,409.80 is: 104,358,614.70
Step by Step Solution
- Step 1: Write the proportion equation
118,144,416.20 : 177,216,624.30 = 69,572,409.80 : x - Step 2: Convert to fraction form
118,144,416.20/177,216,624.30 = 69,572,409.80/x - Step 3: Cross multiply
118,144,416.20x = 177,216,624.30 × 69,572,409.80 - Step 4: Simplify right side
118,144,416.20x = 12,329,387,609,172,238 - Step 5: Solve for x
x = 12,329,387,609,172,238/118,144,416.20 - Step 6: Final answer
x = 104,358,614.70
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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.