Finding the Fourth Proportional to 314,928,358.20, 472,392,537.30 and 278,577,793.80
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Solution
The fourth proportional to 314,928,358.20, 472,392,537.30 and 278,577,793.80 is: 417,866,690.70
Step by Step Solution
- Step 1: Write the proportion equation
314,928,358.20 : 472,392,537.30 = 278,577,793.80 : x - Step 2: Convert to fraction form
314,928,358.20/472,392,537.30 = 278,577,793.80/x - Step 3: Cross multiply
314,928,358.20x = 472,392,537.30 × 278,577,793.80 - Step 4: Simplify right side
314,928,358.20x = 131,598,070,848,618,224 - Step 5: Solve for x
x = 131,598,070,848,618,224/314,928,358.20 - Step 6: Final answer
x = 417,866,690.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.