Finding the Fourth Proportional to 18,146,164.30, 27,219,246.45 and 13,611,201.10
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Solution
The fourth proportional to 18,146,164.30, 27,219,246.45 and 13,611,201.10 is: 20,416,801.65
Step by Step Solution
- Step 1: Write the proportion equation
18,146,164.30 : 27,219,246.45 = 13,611,201.10 : x - Step 2: Convert to fraction form
18,146,164.30/27,219,246.45 = 13,611,201.10/x - Step 3: Cross multiply
18,146,164.30x = 27,219,246.45 × 13,611,201.10 - Step 4: Simplify right side
18,146,164.30x = 370,486,637,221,411.06 - Step 5: Solve for x
x = 370,486,637,221,411.06/18,146,164.30 - Step 6: Final answer
x = 20,416,801.65
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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.