Finding the Fourth Proportional to 19,396,751.75, 29,128,073.58 and 12,961,176.54
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Solution
The fourth proportional to 19,396,751.75, 29,128,073.58 and 12,961,176.54 is: 19,463,779.76
Step by Step Solution
- Step 1: Write the proportion equation
19,396,751.75 : 29,128,073.58 = 12,961,176.54 : x - Step 2: Convert to fraction form
19,396,751.75/29,128,073.58 = 12,961,176.54/x - Step 3: Cross multiply
19,396,751.75x = 29,128,073.58 × 12,961,176.54 - Step 4: Simplify right side
19,396,751.75x = 377,534,103,940,489.75 - Step 5: Solve for x
x = 377,534,103,940,489.75/19,396,751.75 - Step 6: Final answer
x = 19,463,779.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.