Finding the Fourth Proportional to 67,165,660.91, 100,749,055.37 and 18,647,298.14
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Solution
The fourth proportional to 67,165,660.91, 100,749,055.37 and 18,647,298.14 is: 27,971,103.79
Step by Step Solution
- Step 1: Write the proportion equation
67,165,660.91 : 100,749,055.37 = 18,647,298.14 : x - Step 2: Convert to fraction form
67,165,660.91/100,749,055.37 = 18,647,298.14/x - Step 3: Cross multiply
67,165,660.91x = 100,749,055.37 × 18,647,298.14 - Step 4: Simplify right side
67,165,660.91x = 1,878,697,672,210,776.25 - Step 5: Solve for x
x = 1,878,697,672,210,776.25/67,165,660.91 - Step 6: Final answer
x = 27,971,103.79
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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.