Finding the Fourth Proportional to 48,388,277.20, 72,582,415.80 and 12,486,485.20
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Solution
The fourth proportional to 48,388,277.20, 72,582,415.80 and 12,486,485.20 is: 18,729,727.80
Step by Step Solution
- Step 1: Write the proportion equation
48,388,277.20 : 72,582,415.80 = 12,486,485.20 : x - Step 2: Convert to fraction form
48,388,277.20/72,582,415.80 = 12,486,485.20/x - Step 3: Cross multiply
48,388,277.20x = 72,582,415.80 × 12,486,485.20 - Step 4: Simplify right side
48,388,277.20x = 906,299,260,666,946.12 - Step 5: Solve for x
x = 906,299,260,666,946.12/48,388,277.20 - Step 6: Final answer
x = 18,729,727.80
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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.