Finding the Fourth Proportional to 4,578,848.40, 6,318,835.20 and 2,860,965.12
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Solution
The fourth proportional to 4,578,848.40, 6,318,835.20 and 2,860,965.12 is: 3,948,147.12
Step by Step Solution
- Step 1: Write the proportion equation
4,578,848.40 : 6,318,835.20 = 2,860,965.12 : x - Step 2: Convert to fraction form
4,578,848.40/6,318,835.20 = 2,860,965.12/x - Step 3: Cross multiply
4,578,848.40x = 6,318,835.20 × 2,860,965.12 - Step 4: Simplify right side
4,578,848.40x = 18,077,967,106,228.23 - Step 5: Solve for x
x = 18,077,967,106,228.23/4,578,848.40 - Step 6: Final answer
x = 3,948,147.12
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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.