Finding the Fourth Proportional to 19,511,116.80, 29,235,182.40 and 16,298,851.20
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Solution
The fourth proportional to 19,511,116.80, 29,235,182.40 and 16,298,851.20 is: 24,421,968.90
Step by Step Solution
- Step 1: Write the proportion equation
19,511,116.80 : 29,235,182.40 = 16,298,851.20 : x - Step 2: Convert to fraction form
19,511,116.80/29,235,182.40 = 16,298,851.20/x - Step 3: Cross multiply
19,511,116.80x = 29,235,182.40 × 16,298,851.20 - Step 4: Simplify right side
19,511,116.80x = 476,499,887,742,458.81 - Step 5: Solve for x
x = 476,499,887,742,458.81/19,511,116.80 - Step 6: Final answer
x = 24,421,968.90
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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.