Finding the Fourth Proportional to 14,406,274.72, 19,879,581.36 and 7,879,566.88
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Solution
The fourth proportional to 14,406,274.72, 19,879,581.36 and 7,879,566.88 is: 10,873,212.81
Step by Step Solution
- Step 1: Write the proportion equation
14,406,274.72 : 19,879,581.36 = 7,879,566.88 : x - Step 2: Convert to fraction form
14,406,274.72/19,879,581.36 = 7,879,566.88/x - Step 3: Cross multiply
14,406,274.72x = 19,879,581.36 × 7,879,566.88 - Step 4: Simplify right side
14,406,274.72x = 156,642,490,872,521.34 - Step 5: Solve for x
x = 156,642,490,872,521.34/14,406,274.72 - Step 6: Final answer
x = 10,873,212.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.