Finding the Fourth Proportional to 39,975,918.08, 55,166,785.38 and 21,641,203.56
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Solution
The fourth proportional to 39,975,918.08, 55,166,785.38 and 21,641,203.56 is: 29,864,870.89
Step by Step Solution
- Step 1: Write the proportion equation
39,975,918.08 : 55,166,785.38 = 21,641,203.56 : x - Step 2: Convert to fraction form
39,975,918.08/55,166,785.38 = 21,641,203.56/x - Step 3: Cross multiply
39,975,918.08x = 55,166,785.38 × 21,641,203.56 - Step 4: Simplify right side
39,975,918.08x = 1,193,875,632,159,412 - Step 5: Solve for x
x = 1,193,875,632,159,412/39,975,918.08 - Step 6: Final answer
x = 29,864,870.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.