Finding the Fourth Proportional to 77,682,160.08, 107,201,159.64 and 42,874,600.32
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Solution
The fourth proportional to 77,682,160.08, 107,201,159.64 and 42,874,600.32 is: 59,166,826.32
Step by Step Solution
- Step 1: Write the proportion equation
77,682,160.08 : 107,201,159.64 = 42,874,600.32 : x - Step 2: Convert to fraction form
77,682,160.08/107,201,159.64 = 42,874,600.32/x - Step 3: Cross multiply
77,682,160.08x = 107,201,159.64 × 42,874,600.32 - Step 4: Simplify right side
77,682,160.08x = 4,596,206,873,405,515 - Step 5: Solve for x
x = 4,596,206,873,405,515/77,682,160.08 - Step 6: Final answer
x = 59,166,826.32
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1.5x scale
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.