Finding the Fourth Proportional to 352,273,983.20, 528,410,974.80 and 255,024,216.80
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Solution
The fourth proportional to 352,273,983.20, 528,410,974.80 and 255,024,216.80 is: 382,536,325.20
Step by Step Solution
- Step 1: Write the proportion equation
352,273,983.20 : 528,410,974.80 = 255,024,216.80 : x - Step 2: Convert to fraction form
352,273,983.20/528,410,974.80 = 255,024,216.80/x - Step 3: Cross multiply
352,273,983.20x = 528,410,974.80 × 255,024,216.80 - Step 4: Simplify right side
352,273,983.20x = 134,757,594,996,894,544 - Step 5: Solve for x
x = 134,757,594,996,894,544/352,273,983.20 - Step 6: Final answer
x = 382,536,325.20
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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.