Finding the Fourth Proportional to 16,485,699.44, 22,723,988.40 and 12,995,350.76
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Solution
The fourth proportional to 16,485,699.44, 22,723,988.40 and 12,995,350.76 is: 17,912,870.55
Step by Step Solution
- Step 1: Write the proportion equation
16,485,699.44 : 22,723,988.40 = 12,995,350.76 : x - Step 2: Convert to fraction form
16,485,699.44/22,723,988.40 = 12,995,350.76/x - Step 3: Cross multiply
16,485,699.44x = 22,723,988.40 × 12,995,350.76 - Step 4: Simplify right side
16,485,699.44x = 295,306,199,924,171.19 - Step 5: Solve for x
x = 295,306,199,924,171.19/16,485,699.44 - Step 6: Final answer
x = 17,912,870.55
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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.