Finding the Fourth Proportional to 75,628,823.70, 113,443,235.55 and 73,949,207.70
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Solution
The fourth proportional to 75,628,823.70, 113,443,235.55 and 73,949,207.70 is: 110,923,811.55
Step by Step Solution
- Step 1: Write the proportion equation
75,628,823.70 : 113,443,235.55 = 73,949,207.70 : x - Step 2: Convert to fraction form
75,628,823.70/113,443,235.55 = 73,949,207.70/x - Step 3: Cross multiply
75,628,823.70x = 113,443,235.55 × 73,949,207.70 - Step 4: Simplify right side
75,628,823.70x = 8,389,037,387,846,974 - Step 5: Solve for x
x = 8,389,037,387,846,974/75,628,823.70 - Step 6: Final answer
x = 110,923,811.55
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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.