Finding the Fourth Proportional to 71,102,097.12, 98,120,894.04 and 38,507,049.12
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Solution
The fourth proportional to 71,102,097.12, 98,120,894.04 and 38,507,049.12 is: 53,139,727.79
Step by Step Solution
- Step 1: Write the proportion equation
71,102,097.12 : 98,120,894.04 = 38,507,049.12 : x - Step 2: Convert to fraction form
71,102,097.12/98,120,894.04 = 38,507,049.12/x - Step 3: Cross multiply
71,102,097.12x = 98,120,894.04 × 38,507,049.12 - Step 4: Simplify right side
71,102,097.12x = 3,778,346,086,496,595 - Step 5: Solve for x
x = 3,778,346,086,496,595/71,102,097.12 - Step 6: Final answer
x = 53,139,727.79
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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.