Finding the Fourth Proportional to 149,562,923.58, 206,431,271.93 and 87,703,191.18
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Solution
The fourth proportional to 149,562,923.58, 206,431,271.93 and 87,703,191.18 is: 121,050,597.79
Step by Step Solution
- Step 1: Write the proportion equation
149,562,923.58 : 206,431,271.93 = 87,703,191.18 : x - Step 2: Convert to fraction form
149,562,923.58/206,431,271.93 = 87,703,191.18/x - Step 3: Cross multiply
149,562,923.58x = 206,431,271.93 × 87,703,191.18 - Step 4: Simplify right side
149,562,923.58x = 18,104,681,307,168,844 - Step 5: Solve for x
x = 18,104,681,307,168,844/149,562,923.58 - Step 6: Final answer
x = 121,050,597.79
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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.