Finding the Fourth Proportional to 91,739,919.24, 126,601,051.86 and 50,486,811.62
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Solution
The fourth proportional to 91,739,919.24, 126,601,051.86 and 50,486,811.62 is: 69,671,779.84
Step by Step Solution
- Step 1: Write the proportion equation
91,739,919.24 : 126,601,051.86 = 50,486,811.62 : x - Step 2: Convert to fraction form
91,739,919.24/126,601,051.86 = 50,486,811.62/x - Step 3: Cross multiply
91,739,919.24x = 126,601,051.86 × 50,486,811.62 - Step 4: Simplify right side
91,739,919.24x = 6,391,683,455,516,666 - Step 5: Solve for x
x = 6,391,683,455,516,666/91,739,919.24 - Step 6: Final answer
x = 69,671,779.84
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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.