Finding the Fourth Proportional to 21,375,879, 29,501,864.64 and 13,536,106.80
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Solution
The fourth proportional to 21,375,879, 29,501,864.64 and 13,536,106.80 is: 18,681,823.12
Step by Step Solution
- Step 1: Write the proportion equation
21,375,879 : 29,501,864.64 = 13,536,106.80 : x - Step 2: Convert to fraction form
21,375,879/29,501,864.64 = 13,536,106.80/x - Step 3: Cross multiply
21,375,879x = 29,501,864.64 × 13,536,106.80 - Step 4: Simplify right side
21,375,879x = 399,340,390,566,183.56 - Step 5: Solve for x
x = 399,340,390,566,183.56/21,375,879 - Step 6: Final answer
x = 18,681,823.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.