Finding the Fourth Proportional to 13,918,720.80, 19,207,330.02 and 7,724,037.84
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Solution
The fourth proportional to 13,918,720.80, 19,207,330.02 and 7,724,037.84 is: 10,658,892.15
Step by Step Solution
- Step 1: Write the proportion equation
13,918,720.80 : 19,207,330.02 = 7,724,037.84 : x - Step 2: Convert to fraction form
13,918,720.80/19,207,330.02 = 7,724,037.84/x - Step 3: Cross multiply
13,918,720.80x = 19,207,330.02 × 7,724,037.84 - Step 4: Simplify right side
13,918,720.80x = 148,358,143,879,847.94 - Step 5: Solve for x
x = 148,358,143,879,847.94/13,918,720.80 - Step 6: Final answer
x = 10,658,892.15
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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.