Finding the Fourth Proportional to 20,926,335.68, 31,395,506.76 and 8,789,557.28
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Solution
The fourth proportional to 20,926,335.68, 31,395,506.76 and 8,789,557.28 is: 13,186,857.42
Step by Step Solution
- Step 1: Write the proportion equation
20,926,335.68 : 31,395,506.76 = 8,789,557.28 : x - Step 2: Convert to fraction form
20,926,335.68/31,395,506.76 = 8,789,557.28/x - Step 3: Cross multiply
20,926,335.68x = 31,395,506.76 × 8,789,557.28 - Step 4: Simplify right side
20,926,335.68x = 275,952,605,001,647.22 - Step 5: Solve for x
x = 275,952,605,001,647.22/20,926,335.68 - Step 6: Final answer
x = 13,186,857.42
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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.