Finding the Fourth Proportional to 72,582,460.20, 108,873,690.30 and 48,395,989.80
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Solution
The fourth proportional to 72,582,460.20, 108,873,690.30 and 48,395,989.80 is: 72,593,984.70
Step by Step Solution
- Step 1: Write the proportion equation
72,582,460.20 : 108,873,690.30 = 48,395,989.80 : x - Step 2: Convert to fraction form
72,582,460.20/108,873,690.30 = 48,395,989.80/x - Step 3: Cross multiply
72,582,460.20x = 108,873,690.30 × 48,395,989.80 - Step 4: Simplify right side
72,582,460.20x = 5,269,050,005,247,158 - Step 5: Solve for x
x = 5,269,050,005,247,158/72,582,460.20 - Step 6: Final answer
x = 72,593,984.70
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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.