Finding the Fourth Proportional to 10,979,979.36, 16,473,889.26 and 6,670,820.40
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Solution
The fourth proportional to 10,979,979.36, 16,473,889.26 and 6,670,820.40 is: 10,008,612.31
Step by Step Solution
- Step 1: Write the proportion equation
10,979,979.36 : 16,473,889.26 = 6,670,820.40 : x - Step 2: Convert to fraction form
10,979,979.36/16,473,889.26 = 6,670,820.40/x - Step 3: Cross multiply
10,979,979.36x = 16,473,889.26 × 6,670,820.40 - Step 4: Simplify right side
10,979,979.36x = 109,894,356,542,948.91 - Step 5: Solve for x
x = 109,894,356,542,948.91/10,979,979.36 - Step 6: Final answer
x = 10,008,612.31
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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.