Finding the Fourth Proportional to 10,328,343.50, 15,462,597.75 and 7,780,289.62
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Solution
The fourth proportional to 10,328,343.50, 15,462,597.75 and 7,780,289.62 is: 11,647,897.73
Step by Step Solution
- Step 1: Write the proportion equation
10,328,343.50 : 15,462,597.75 = 7,780,289.62 : x - Step 2: Convert to fraction form
10,328,343.50/15,462,597.75 = 7,780,289.62/x - Step 3: Cross multiply
10,328,343.50x = 15,462,597.75 × 7,780,289.62 - Step 4: Simplify right side
10,328,343.50x = 120,303,488,772,560.36 - Step 5: Solve for x
x = 120,303,488,772,560.36/10,328,343.50 - Step 6: Final answer
x = 11,647,897.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.