Finding the Fourth Proportional to 3,834,698.96, 5,291,995.36 and 2,115,930.20
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Solution
The fourth proportional to 3,834,698.96, 5,291,995.36 and 2,115,930.20 is: 2,920,044.81
Step by Step Solution
- Step 1: Write the proportion equation
3,834,698.96 : 5,291,995.36 = 2,115,930.20 : x - Step 2: Convert to fraction form
3,834,698.96/5,291,995.36 = 2,115,930.20/x - Step 3: Cross multiply
3,834,698.96x = 5,291,995.36 × 2,115,930.20 - Step 4: Simplify right side
3,834,698.96x = 11,197,492,800,483.87 - Step 5: Solve for x
x = 11,197,492,800,483.87/3,834,698.96 - Step 6: Final answer
x = 2,920,044.81
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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.