Finding the Fourth Proportional to 5,430,027.30, 8,142,967.35 and 1,642,251.30
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Solution
The fourth proportional to 5,430,027.30, 8,142,967.35 and 1,642,251.30 is: 2,462,749.81
Step by Step Solution
- Step 1: Write the proportion equation
5,430,027.30 : 8,142,967.35 = 1,642,251.30 : x - Step 2: Convert to fraction form
5,430,027.30/8,142,967.35 = 1,642,251.30/x - Step 3: Cross multiply
5,430,027.30x = 8,142,967.35 × 1,642,251.30 - Step 4: Simplify right side
5,430,027.30x = 13,372,798,716,395.05 - Step 5: Solve for x
x = 13,372,798,716,395.05/5,430,027.30 - Step 6: Final answer
x = 2,462,749.81
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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.