Finding the Fourth Proportional to 257,527,770.12, 355,468,343.13 and 204,698,219.49
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Solution
The fourth proportional to 257,527,770.12, 355,468,343.13 and 204,698,219.49 is: 282,547,147.79
Step by Step Solution
- Step 1: Write the proportion equation
257,527,770.12 : 355,468,343.13 = 204,698,219.49 : x - Step 2: Convert to fraction form
257,527,770.12/355,468,343.13 = 204,698,219.49/x - Step 3: Cross multiply
257,527,770.12x = 355,468,343.13 × 204,698,219.49 - Step 4: Simplify right side
257,527,770.12x = 72,763,736,923,771,376 - Step 5: Solve for x
x = 72,763,736,923,771,376/257,527,770.12 - Step 6: Final answer
x = 282,547,147.79
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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.