Finding the Fourth Proportional to 9,132,652.56, 12,603,264.18 and 5,212,330.05
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Solution
The fourth proportional to 9,132,652.56, 12,603,264.18 and 5,212,330.05 is: 7,193,131.70
Step by Step Solution
- Step 1: Write the proportion equation
9,132,652.56 : 12,603,264.18 = 5,212,330.05 : x - Step 2: Convert to fraction form
9,132,652.56/12,603,264.18 = 5,212,330.05/x - Step 3: Cross multiply
9,132,652.56x = 12,603,264.18 × 5,212,330.05 - Step 4: Simplify right side
9,132,652.56x = 65,692,372,613,502.60 - Step 5: Solve for x
x = 65,692,372,613,502.60/9,132,652.56 - Step 6: Final answer
x = 7,193,131.70
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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.