Finding the Fourth Proportional to 314,930,714.80, 472,396,072.20 and 277,942,421.20
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Solution
The fourth proportional to 314,930,714.80, 472,396,072.20 and 277,942,421.20 is: 416,913,631.80
Step by Step Solution
- Step 1: Write the proportion equation
314,930,714.80 : 472,396,072.20 = 277,942,421.20 : x - Step 2: Convert to fraction form
314,930,714.80/472,396,072.20 = 277,942,421.20/x - Step 3: Cross multiply
314,930,714.80x = 472,396,072.20 × 277,942,421.20 - Step 4: Simplify right side
314,930,714.80x = 131,298,908,072,638,000 - Step 5: Solve for x
x = 131,298,908,072,638,000/314,930,714.80 - Step 6: Final answer
x = 416,913,631.80
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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.