Finding the Fourth Proportional to 18,829,346.99, 28,254,917.24 and 7,898,557.70
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Solution
The fourth proportional to 18,829,346.99, 28,254,917.24 and 7,898,557.70 is: 11,852,407.53
Step by Step Solution
- Step 1: Write the proportion equation
18,829,346.99 : 28,254,917.24 = 7,898,557.70 : x - Step 2: Convert to fraction form
18,829,346.99/28,254,917.24 = 7,898,557.70/x - Step 3: Cross multiply
18,829,346.99x = 28,254,917.24 × 7,898,557.70 - Step 4: Simplify right side
18,829,346.99x = 223,173,093,948,097.38 - Step 5: Solve for x
x = 223,173,093,948,097.38/18,829,346.99 - Step 6: Final answer
x = 11,852,407.53
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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.