Finding the Fourth Proportional to 7,006,460.81, 9,668,985.46 and 3,908,958.03
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Solution
The fourth proportional to 7,006,460.81, 9,668,985.46 and 3,908,958.03 is: 5,394,400.88
Step by Step Solution
- Step 1: Write the proportion equation
7,006,460.81 : 9,668,985.46 = 3,908,958.03 : x - Step 2: Convert to fraction form
7,006,460.81/9,668,985.46 = 3,908,958.03/x - Step 3: Cross multiply
7,006,460.81x = 9,668,985.46 × 3,908,958.03 - Step 4: Simplify right side
7,006,460.81x = 37,795,658,355,820.24 - Step 5: Solve for x
x = 37,795,658,355,820.24/7,006,460.81 - Step 6: Final answer
x = 5,394,400.88
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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.