Finding the Fourth Proportional to 5,103,792.68, 7,043,360.74 and 3,142,928.48
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Solution
The fourth proportional to 5,103,792.68, 7,043,360.74 and 3,142,928.48 is: 4,337,319.41
Step by Step Solution
- Step 1: Write the proportion equation
5,103,792.68 : 7,043,360.74 = 3,142,928.48 : x - Step 2: Convert to fraction form
5,103,792.68/7,043,360.74 = 3,142,928.48/x - Step 3: Cross multiply
5,103,792.68x = 7,043,360.74 × 3,142,928.48 - Step 4: Simplify right side
5,103,792.68x = 22,136,779,021,585.75 - Step 5: Solve for x
x = 22,136,779,021,585.75/5,103,792.68 - Step 6: Final answer
x = 4,337,319.41
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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.