Finding the Fourth Proportional to 31,549,551.42, 47,324,327.12 and 7,615,023.42
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Solution
The fourth proportional to 31,549,551.42, 47,324,327.12 and 7,615,023.42 is: 11,422,535.13
Step by Step Solution
- Step 1: Write the proportion equation
31,549,551.42 : 47,324,327.12 = 7,615,023.42 : x - Step 2: Convert to fraction form
31,549,551.42/47,324,327.12 = 7,615,023.42/x - Step 3: Cross multiply
31,549,551.42x = 47,324,327.12 × 7,615,023.42 - Step 4: Simplify right side
31,549,551.42x = 360,375,859,354,541.12 - Step 5: Solve for x
x = 360,375,859,354,541.12/31,549,551.42 - Step 6: Final answer
x = 11,422,535.13
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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.