Finding the Fourth Proportional to 257,816,160.80, 386,157,370.80 and 223,803,936.80
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Solution
The fourth proportional to 257,816,160.80, 386,157,370.80 and 223,803,936.80 is: 335,213,818.80
Step by Step Solution
- Step 1: Write the proportion equation
257,816,160.80 : 386,157,370.80 = 223,803,936.80 : x - Step 2: Convert to fraction form
257,816,160.80/386,157,370.80 = 223,803,936.80/x - Step 3: Cross multiply
257,816,160.80x = 386,157,370.80 × 223,803,936.80 - Step 4: Simplify right side
257,816,160.80x = 86,423,539,809,377,376 - Step 5: Solve for x
x = 86,423,539,809,377,376/257,816,160.80 - Step 6: Final answer
x = 335,213,818.80
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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.