Finding the Fourth Proportional to 10,374,387.40, 15,564,302.70 and 3,984,848.20
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Solution
The fourth proportional to 10,374,387.40, 15,564,302.70 and 3,984,848.20 is: 5,978,317.68
Step by Step Solution
- Step 1: Write the proportion equation
10,374,387.40 : 15,564,302.70 = 3,984,848.20 : x - Step 2: Convert to fraction form
10,374,387.40/15,564,302.70 = 3,984,848.20/x - Step 3: Cross multiply
10,374,387.40x = 15,564,302.70 × 3,984,848.20 - Step 4: Simplify right side
10,374,387.40x = 62,021,383,598,350.14 - Step 5: Solve for x
x = 62,021,383,598,350.14/10,374,387.40 - Step 6: Final answer
x = 5,978,317.68
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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.