Finding the Fourth Proportional to 30,575,847.96, 42,193,395.92 and 16,637,257.80
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Solution
The fourth proportional to 30,575,847.96, 42,193,395.92 and 16,637,257.80 is: 22,958,722.40
Step by Step Solution
- Step 1: Write the proportion equation
30,575,847.96 : 42,193,395.92 = 16,637,257.80 : x - Step 2: Convert to fraction form
30,575,847.96/42,193,395.92 = 16,637,257.80/x - Step 3: Cross multiply
30,575,847.96x = 42,193,395.92 × 16,637,257.80 - Step 4: Simplify right side
30,575,847.96x = 701,982,405,378,508.25 - Step 5: Solve for x
x = 701,982,405,378,508.25/30,575,847.96 - Step 6: Final answer
x = 22,958,722.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.