Finding the Fourth Proportional to 13,439,579.13, 20,153,763.47 and 4,215,175.02
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Solution
The fourth proportional to 13,439,579.13, 20,153,763.47 and 4,215,175.02 is: 6,321,004.51
Step by Step Solution
- Step 1: Write the proportion equation
13,439,579.13 : 20,153,763.47 = 4,215,175.02 : x - Step 2: Convert to fraction form
13,439,579.13/20,153,763.47 = 4,215,175.02/x - Step 3: Cross multiply
13,439,579.13x = 20,153,763.47 × 4,215,175.02 - Step 4: Simplify right side
13,439,579.13x = 84,951,640,337,732.50 - Step 5: Solve for x
x = 84,951,640,337,732.50/13,439,579.13 - Step 6: Final answer
x = 6,321,004.51
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1.5x scale
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.