Finding the Fourth Proportional to 12,358,750.60, 18,538,125.90 and 11,854,865.80
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Solution
The fourth proportional to 12,358,750.60, 18,538,125.90 and 11,854,865.80 is: 17,782,298.70
Step by Step Solution
- Step 1: Write the proportion equation
12,358,750.60 : 18,538,125.90 = 11,854,865.80 : x - Step 2: Convert to fraction form
12,358,750.60/18,538,125.90 = 11,854,865.80/x - Step 3: Cross multiply
12,358,750.60x = 18,538,125.90 × 11,854,865.80 - Step 4: Simplify right side
12,358,750.60x = 219,766,994,728,004.22 - Step 5: Solve for x
x = 219,766,994,728,004.22/12,358,750.60 - Step 6: Final answer
x = 17,782,298.70
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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.