Finding the Fourth Proportional to 6,937,863.18, 9,574,135.20 and 3,840,320.13
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Solution
The fourth proportional to 6,937,863.18, 9,574,135.20 and 3,840,320.13 is: 5,299,577.58
Step by Step Solution
- Step 1: Write the proportion equation
6,937,863.18 : 9,574,135.20 = 3,840,320.13 : x - Step 2: Convert to fraction form
6,937,863.18/9,574,135.20 = 3,840,320.13/x - Step 3: Cross multiply
6,937,863.18x = 9,574,135.20 × 3,840,320.13 - Step 4: Simplify right side
6,937,863.18x = 36,767,744,135,901.57 - Step 5: Solve for x
x = 36,767,744,135,901.57/6,937,863.18 - Step 6: Final answer
x = 5,299,577.58
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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.