Finding the Fourth Proportional to 19,468,757.32, 29,182,542.30 and 7,332,970.12
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Solution
The fourth proportional to 19,468,757.32, 29,182,542.30 and 7,332,970.12 is: 10,991,698.50
Step by Step Solution
- Step 1: Write the proportion equation
19,468,757.32 : 29,182,542.30 = 7,332,970.12 : x - Step 2: Convert to fraction form
19,468,757.32/29,182,542.30 = 7,332,970.12/x - Step 3: Cross multiply
19,468,757.32x = 29,182,542.30 × 7,332,970.12 - Step 4: Simplify right side
19,468,757.32x = 213,994,710,711,536.09 - Step 5: Solve for x
x = 213,994,710,711,536.09/19,468,757.32 - Step 6: Final answer
x = 10,991,698.50
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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.