Finding the Fourth Proportional to 18,725,698.24, 28,063,885.13 and 7,929,640.37
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Solution
The fourth proportional to 18,725,698.24, 28,063,885.13 and 7,929,640.37 is: 11,884,017.02
Step by Step Solution
- Step 1: Write the proportion equation
18,725,698.24 : 28,063,885.13 = 7,929,640.37 : x - Step 2: Convert to fraction form
18,725,698.24/28,063,885.13 = 7,929,640.37/x - Step 3: Cross multiply
18,725,698.24x = 28,063,885.13 × 7,929,640.37 - Step 4: Simplify right side
18,725,698.24x = 222,536,516,496,402.19 - Step 5: Solve for x
x = 222,536,516,496,402.19/18,725,698.24 - Step 6: Final answer
x = 11,884,017.02
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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.