Finding the Fourth Proportional to 870,178,189.20, 1,305,303,303.68 and 256,762,414.94
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Solution
The fourth proportional to 870,178,189.20, 1,305,303,303.68 and 256,762,414.94 is: 385,154,250.75
Step by Step Solution
- Step 1: Write the proportion equation
870,178,189.20 : 1,305,303,303.68 = 256,762,414.94 : x - Step 2: Convert to fraction form
870,178,189.20/1,305,303,303.68 = 256,762,414.94/x - Step 3: Cross multiply
870,178,189.20x = 1,305,303,303.68 × 256,762,414.94 - Step 4: Simplify right side
870,178,189.20x = 335,152,828,482,036,992 - Step 5: Solve for x
x = 335,152,828,482,036,992/870,178,189.20 - Step 6: Final answer
x = 385,154,250.75
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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.