Finding the Fourth Proportional to 18,134,486.70, 27,201,730.05 and 15,772,526.70
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Solution
The fourth proportional to 18,134,486.70, 27,201,730.05 and 15,772,526.70 is: 23,658,790.05
Step by Step Solution
- Step 1: Write the proportion equation
18,134,486.70 : 27,201,730.05 = 15,772,526.70 : x - Step 2: Convert to fraction form
18,134,486.70/27,201,730.05 = 15,772,526.70/x - Step 3: Cross multiply
18,134,486.70x = 27,201,730.05 × 15,772,526.70 - Step 4: Simplify right side
18,134,486.70x = 429,040,013,499,817.31 - Step 5: Solve for x
x = 429,040,013,499,817.31/18,134,486.70 - Step 6: Final answer
x = 23,658,790.05
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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.