Finding the Fourth Proportional to 4,791,621.21, 6,613,017.12 and 2,727,138.75
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Solution
The fourth proportional to 4,791,621.21, 6,613,017.12 and 2,727,138.75 is: 3,763,781.50
Step by Step Solution
- Step 1: Write the proportion equation
4,791,621.21 : 6,613,017.12 = 2,727,138.75 : x - Step 2: Convert to fraction form
4,791,621.21/6,613,017.12 = 2,727,138.75/x - Step 3: Cross multiply
4,791,621.21x = 6,613,017.12 × 2,727,138.75 - Step 4: Simplify right side
4,791,621.21x = 18,034,615,242,365.40 - Step 5: Solve for x
x = 18,034,615,242,365.40/4,791,621.21 - Step 6: Final answer
x = 3,763,781.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.