Finding the Fourth Proportional to 14,687,994.30, 22,031,991.45 and 14,128,122.30
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Solution
The fourth proportional to 14,687,994.30, 22,031,991.45 and 14,128,122.30 is: 21,192,183.45
Step by Step Solution
- Step 1: Write the proportion equation
14,687,994.30 : 22,031,991.45 = 14,128,122.30 : x - Step 2: Convert to fraction form
14,687,994.30/22,031,991.45 = 14,128,122.30/x - Step 3: Cross multiply
14,687,994.30x = 22,031,991.45 × 14,128,122.30 - Step 4: Simplify right side
14,687,994.30x = 311,270,669,718,154.31 - Step 5: Solve for x
x = 311,270,669,718,154.31/14,687,994.30 - Step 6: Final answer
x = 21,192,183.45
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1.5x scale
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.