Finding the Fourth Proportional to 278,041,528.80, 417,062,293.20 and 73,590,271.20
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Solution
The fourth proportional to 278,041,528.80, 417,062,293.20 and 73,590,271.20 is: 110,385,406.80
Step by Step Solution
- Step 1: Write the proportion equation
278,041,528.80 : 417,062,293.20 = 73,590,271.20 : x - Step 2: Convert to fraction form
278,041,528.80/417,062,293.20 = 73,590,271.20/x - Step 3: Cross multiply
278,041,528.80x = 417,062,293.20 × 73,590,271.20 - Step 4: Simplify right side
278,041,528.80x = 30,691,727,263,881,916 - Step 5: Solve for x
x = 30,691,727,263,881,916/278,041,528.80 - Step 6: Final answer
x = 110,385,406.80
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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.