Finding the Fourth Proportional to 13,512,899.99, 20,301,686.16 and 8,664,705.20
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Solution
The fourth proportional to 13,512,899.99, 20,301,686.16 and 8,664,705.20 is: 13,017,792.31
Step by Step Solution
- Step 1: Write the proportion equation
13,512,899.99 : 20,301,686.16 = 8,664,705.20 : x - Step 2: Convert to fraction form
13,512,899.99/20,301,686.16 = 8,664,705.20/x - Step 3: Cross multiply
13,512,899.99x = 20,301,686.16 × 8,664,705.20 - Step 4: Simplify right side
13,512,899.99x = 175,908,125,639,320.03 - Step 5: Solve for x
x = 175,908,125,639,320.03/13,512,899.99 - Step 6: Final answer
x = 13,017,792.31
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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.