Finding the Fourth Proportional to 13,855,803.72, 19,121,675.58 and 7,660,735.80
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Solution
The fourth proportional to 13,855,803.72, 19,121,675.58 and 7,660,735.80 is: 10,572,183.88
Step by Step Solution
- Step 1: Write the proportion equation
13,855,803.72 : 19,121,675.58 = 7,660,735.80 : x - Step 2: Convert to fraction form
13,855,803.72/19,121,675.58 = 7,660,735.80/x - Step 3: Cross multiply
13,855,803.72x = 19,121,675.58 × 7,660,735.80 - Step 4: Simplify right side
13,855,803.72x = 146,486,104,671,691.75 - Step 5: Solve for x
x = 146,486,104,671,691.75/13,855,803.72 - Step 6: Final answer
x = 10,572,183.88
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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.