Finding the Fourth Proportional to 90,287,811, 124,597,911.36 and 49,034,998.68
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Solution
The fourth proportional to 90,287,811, 124,597,911.36 and 49,034,998.68 is: 67,668,695.82
Step by Step Solution
- Step 1: Write the proportion equation
90,287,811 : 124,597,911.36 = 49,034,998.68 : x - Step 2: Convert to fraction form
90,287,811/124,597,911.36 = 49,034,998.68/x - Step 3: Cross multiply
90,287,811x = 124,597,911.36 × 49,034,998.68 - Step 4: Simplify right side
90,287,811x = 6,109,658,419,068,357 - Step 5: Solve for x
x = 6,109,658,419,068,357/90,287,811 - Step 6: Final answer
x = 67,668,695.82
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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.