Finding the Fourth Proportional to 4,785,427.08, 7,161,278.58 and 2,989,156.50
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Solution
The fourth proportional to 4,785,427.08, 7,161,278.58 and 2,989,156.50 is: 4,473,202.09
Step by Step Solution
- Step 1: Write the proportion equation
4,785,427.08 : 7,161,278.58 = 2,989,156.50 : x - Step 2: Convert to fraction form
4,785,427.08/7,161,278.58 = 2,989,156.50/x - Step 3: Cross multiply
4,785,427.08x = 7,161,278.58 × 2,989,156.50 - Step 4: Simplify right side
4,785,427.08x = 21,406,182,415,717.77 - Step 5: Solve for x
x = 21,406,182,415,717.77/4,785,427.08 - Step 6: Final answer
x = 4,473,202.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.