Finding the Fourth Proportional to 10,634,493.60, 15,930,745.20 and 6,361,970.40
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Solution
The fourth proportional to 10,634,493.60, 15,930,745.20 and 6,361,970.40 is: 9,530,395.45
Step by Step Solution
- Step 1: Write the proportion equation
10,634,493.60 : 15,930,745.20 = 6,361,970.40 : x - Step 2: Convert to fraction form
10,634,493.60/15,930,745.20 = 6,361,970.40/x - Step 3: Cross multiply
10,634,493.60x = 15,930,745.20 × 6,361,970.40 - Step 4: Simplify right side
10,634,493.60x = 101,350,929,412,342.08 - Step 5: Solve for x
x = 101,350,929,412,342.08/10,634,493.60 - Step 6: Final answer
x = 9,530,395.45
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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.