Finding the Fourth Proportional to 20,483,069.12, 30,717,488.64 and 11,399,029.28
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Solution
The fourth proportional to 20,483,069.12, 30,717,488.64 and 11,399,029.28 is: 17,094,584.33
Step by Step Solution
- Step 1: Write the proportion equation
20,483,069.12 : 30,717,488.64 = 11,399,029.28 : x - Step 2: Convert to fraction form
20,483,069.12/30,717,488.64 = 11,399,029.28/x - Step 3: Cross multiply
20,483,069.12x = 30,717,488.64 × 11,399,029.28 - Step 4: Simplify right side
20,483,069.12x = 350,149,552,415,427.38 - Step 5: Solve for x
x = 350,149,552,415,427.38/20,483,069.12 - Step 6: Final answer
x = 17,094,584.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.