Finding the Fourth Proportional to 19,764,346.80, 29,596,753.80 and 12,996,116.40
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Solution
The fourth proportional to 19,764,346.80, 29,596,753.80 and 12,996,116.40 is: 19,461,450.53
Step by Step Solution
- Step 1: Write the proportion equation
19,764,346.80 : 29,596,753.80 = 12,996,116.40 : x - Step 2: Convert to fraction form
19,764,346.80/29,596,753.80 = 12,996,116.40/x - Step 3: Cross multiply
19,764,346.80x = 29,596,753.80 × 12,996,116.40 - Step 4: Simplify right side
19,764,346.80x = 384,642,857,446,942.31 - Step 5: Solve for x
x = 384,642,857,446,942.31/19,764,346.80 - Step 6: Final answer
x = 19,461,450.53
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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.