Finding the Fourth Proportional to 9,132,565.68, 12,603,144.16 and 5,212,243.12
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Solution
The fourth proportional to 9,132,565.68, 12,603,144.16 and 5,212,243.12 is: 7,193,011.66
Step by Step Solution
- Step 1: Write the proportion equation
9,132,565.68 : 12,603,144.16 = 5,212,243.12 : x - Step 2: Convert to fraction form
9,132,565.68/12,603,144.16 = 5,212,243.12/x - Step 3: Cross multiply
9,132,565.68x = 12,603,144.16 × 5,212,243.12 - Step 4: Simplify right side
9,132,565.68x = 65,690,651,438,328.18 - Step 5: Solve for x
x = 65,690,651,438,328.18/9,132,565.68 - Step 6: Final answer
x = 7,193,011.66
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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.