Finding the Fourth Proportional to 6,128,815.43, 8,457,433.61 and 3,374,964.63
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Solution
The fourth proportional to 6,128,815.43, 8,457,433.61 and 3,374,964.63 is: 4,657,268.54
Step by Step Solution
- Step 1: Write the proportion equation
6,128,815.43 : 8,457,433.61 = 3,374,964.63 : x - Step 2: Convert to fraction form
6,128,815.43/8,457,433.61 = 3,374,964.63/x - Step 3: Cross multiply
6,128,815.43x = 8,457,433.61 × 3,374,964.63 - Step 4: Simplify right side
6,128,815.43x = 28,543,539,277,448.39 - Step 5: Solve for x
x = 28,543,539,277,448.39/6,128,815.43 - Step 6: Final answer
x = 4,657,268.54
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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.