Finding the Fourth Proportional to 4,989,619.80, 7,484,429.70 and 2,598,135.30
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Solution
The fourth proportional to 4,989,619.80, 7,484,429.70 and 2,598,135.30 is: 3,897,202.95
Step by Step Solution
- Step 1: Write the proportion equation
4,989,619.80 : 7,484,429.70 = 2,598,135.30 : x - Step 2: Convert to fraction form
4,989,619.80/7,484,429.70 = 2,598,135.30/x - Step 3: Cross multiply
4,989,619.80x = 7,484,429.70 × 2,598,135.30 - Step 4: Simplify right side
4,989,619.80x = 19,445,561,003,938.41 - Step 5: Solve for x
x = 19,445,561,003,938.41/4,989,619.80 - Step 6: Final answer
x = 3,897,202.95
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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.