Finding the Fourth Proportional to 73,291,771.68, 109,937,564.36 and 18,704,358.19
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Solution
The fourth proportional to 73,291,771.68, 109,937,564.36 and 18,704,358.19 is: 28,056,513.51
Step by Step Solution
- Step 1: Write the proportion equation
73,291,771.68 : 109,937,564.36 = 18,704,358.19 : x - Step 2: Convert to fraction form
73,291,771.68/109,937,564.36 = 18,704,358.19/x - Step 3: Cross multiply
73,291,771.68x = 109,937,564.36 × 18,704,358.19 - Step 4: Simplify right side
73,291,771.68x = 2,056,311,582,325,618.25 - Step 5: Solve for x
x = 2,056,311,582,325,618.25/73,291,771.68 - Step 6: Final answer
x = 28,056,513.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.