Finding the Fourth Proportional to 15,961,214.63, 22,026,543.45 and 8,991,975.80
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Solution
The fourth proportional to 15,961,214.63, 22,026,543.45 and 8,991,975.80 is: 12,408,964.50
Step by Step Solution
- Step 1: Write the proportion equation
15,961,214.63 : 22,026,543.45 = 8,991,975.80 : x - Step 2: Convert to fraction form
15,961,214.63/22,026,543.45 = 8,991,975.80/x - Step 3: Cross multiply
15,961,214.63x = 22,026,543.45 × 8,991,975.80 - Step 4: Simplify right side
15,961,214.63x = 198,062,145,660,048.53 - Step 5: Solve for x
x = 198,062,145,660,048.53/15,961,214.63 - Step 6: Final answer
x = 12,408,964.50
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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.