Finding the Fourth Proportional to 6,878,217.51, 9,475,534.85 and 4,809,362.09
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Solution
The fourth proportional to 6,878,217.51, 9,475,534.85 and 4,809,362.09 is: 6,625,448.81
Step by Step Solution
- Step 1: Write the proportion equation
6,878,217.51 : 9,475,534.85 = 4,809,362.09 : x - Step 2: Convert to fraction form
6,878,217.51/9,475,534.85 = 4,809,362.09/x - Step 3: Cross multiply
6,878,217.51x = 9,475,534.85 × 4,809,362.09 - Step 4: Simplify right side
6,878,217.51x = 45,571,278,018,639.35 - Step 5: Solve for x
x = 45,571,278,018,639.35/6,878,217.51 - Step 6: Final answer
x = 6,625,448.81
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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.