Finding the Fourth Proportional to 19,378,212.21, 29,066,352.12 and 7,246,783.80
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Solution
The fourth proportional to 19,378,212.21, 29,066,352.12 and 7,246,783.80 is: 10,869,814.38
Step by Step Solution
- Step 1: Write the proportion equation
19,378,212.21 : 29,066,352.12 = 7,246,783.80 : x - Step 2: Convert to fraction form
19,378,212.21/29,066,352.12 = 7,246,783.80/x - Step 3: Cross multiply
19,378,212.21x = 29,066,352.12 × 7,246,783.80 - Step 4: Simplify right side
19,378,212.21x = 210,637,569,668,311.66 - Step 5: Solve for x
x = 210,637,569,668,311.66/19,378,212.21 - Step 6: Final answer
x = 10,869,814.38
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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.