Finding the Fourth Proportional to 5,380,864.84, 7,421,392.74 and 3,447,304.12
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Solution
The fourth proportional to 5,380,864.84, 7,421,392.74 and 3,447,304.12 is: 4,754,588.44
Step by Step Solution
- Step 1: Write the proportion equation
5,380,864.84 : 7,421,392.74 = 3,447,304.12 : x - Step 2: Convert to fraction form
5,380,864.84/7,421,392.74 = 3,447,304.12/x - Step 3: Cross multiply
5,380,864.84x = 7,421,392.74 × 3,447,304.12 - Step 4: Simplify right side
5,380,864.84x = 25,583,797,768,740.09 - Step 5: Solve for x
x = 25,583,797,768,740.09/5,380,864.84 - Step 6: Final answer
x = 4,754,588.44
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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.