Finding the Fourth Proportional to 7,315,956.42, 10,072,986.06 and 6,211,202.70
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Solution
The fourth proportional to 7,315,956.42, 10,072,986.06 and 6,211,202.70 is: 8,551,904.17
Step by Step Solution
- Step 1: Write the proportion equation
7,315,956.42 : 10,072,986.06 = 6,211,202.70 : x - Step 2: Convert to fraction form
7,315,956.42/10,072,986.06 = 6,211,202.70/x - Step 3: Cross multiply
7,315,956.42x = 10,072,986.06 × 6,211,202.70 - Step 4: Simplify right side
7,315,956.42x = 62,565,358,212,934.37 - Step 5: Solve for x
x = 62,565,358,212,934.37/7,315,956.42 - Step 6: Final answer
x = 8,551,904.17
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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.