Finding the Fourth Proportional to 73,814,586.90, 110,721,880.35 and 68,439,815.70
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Solution
The fourth proportional to 73,814,586.90, 110,721,880.35 and 68,439,815.70 is: 102,659,723.55
Step by Step Solution
- Step 1: Write the proportion equation
73,814,586.90 : 110,721,880.35 = 68,439,815.70 : x - Step 2: Convert to fraction form
73,814,586.90/110,721,880.35 = 68,439,815.70/x - Step 3: Cross multiply
73,814,586.90x = 110,721,880.35 × 68,439,815.70 - Step 4: Simplify right side
73,814,586.90x = 7,577,785,085,111,451 - Step 5: Solve for x
x = 7,577,785,085,111,451/73,814,586.90 - Step 6: Final answer
x = 102,659,723.55
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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.