Finding the Fourth Proportional to 870,187,112.08, 1,305,280,668.11 and 295,758,440.08
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Solution
The fourth proportional to 870,187,112.08, 1,305,280,668.11 and 295,758,440.08 is: 443,637,660.12
Step by Step Solution
- Step 1: Write the proportion equation
870,187,112.08 : 1,305,280,668.11 = 295,758,440.08 : x - Step 2: Convert to fraction form
870,187,112.08/1,305,280,668.11 = 295,758,440.08/x - Step 3: Cross multiply
870,187,112.08x = 1,305,280,668.11 × 295,758,440.08 - Step 4: Simplify right side
870,187,112.08x = 386,047,774,266,793,728 - Step 5: Solve for x
x = 386,047,774,266,793,728/870,187,112.08 - Step 6: Final answer
x = 443,637,660.12
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Double scale
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Similar ratio
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1.5x scale
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.