Finding the Fourth Proportional to 221,329,802.70, 331,994,704.05 and 67,975,613.10
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Solution
The fourth proportional to 221,329,802.70, 331,994,704.05 and 67,975,613.10 is: 101,963,419.65
Step by Step Solution
- Step 1: Write the proportion equation
221,329,802.70 : 331,994,704.05 = 67,975,613.10 : x - Step 2: Convert to fraction form
221,329,802.70/331,994,704.05 = 67,975,613.10/x - Step 3: Cross multiply
221,329,802.70x = 331,994,704.05 × 67,975,613.10 - Step 4: Simplify right side
221,329,802.70x = 22,567,543,553,751,800 - Step 5: Solve for x
x = 22,567,543,553,751,800/221,329,802.70 - Step 6: Final answer
x = 101,963,419.65
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1.5x scale
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.