Finding the Fourth Proportional to 57,555,778.69, 79,427,181.05 and 31,450,295.98
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Solution
The fourth proportional to 57,555,778.69, 79,427,181.05 and 31,450,295.98 is: 43,401,521.27
Step by Step Solution
- Step 1: Write the proportion equation
57,555,778.69 : 79,427,181.05 = 31,450,295.98 : x - Step 2: Convert to fraction form
57,555,778.69/79,427,181.05 = 31,450,295.98/x - Step 3: Cross multiply
57,555,778.69x = 79,427,181.05 × 31,450,295.98 - Step 4: Simplify right side
57,555,778.69x = 2,498,008,352,879,547 - Step 5: Solve for x
x = 2,498,008,352,879,547/57,555,778.69 - Step 6: Final answer
x = 43,401,521.27
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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.