Finding the Fourth Proportional to 5,427,832.76, 7,490,068.52 and 2,980,426.68
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Solution
The fourth proportional to 5,427,832.76, 7,490,068.52 and 2,980,426.68 is: 4,112,801.75
Step by Step Solution
- Step 1: Write the proportion equation
5,427,832.76 : 7,490,068.52 = 2,980,426.68 : x - Step 2: Convert to fraction form
5,427,832.76/7,490,068.52 = 2,980,426.68/x - Step 3: Cross multiply
5,427,832.76x = 7,490,068.52 × 2,980,426.68 - Step 4: Simplify right side
5,427,832.76x = 22,323,600,052,036.11 - Step 5: Solve for x
x = 22,323,600,052,036.11/5,427,832.76 - Step 6: Final answer
x = 4,112,801.75
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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.