Finding the Fourth Proportional to 10,120,417.66, 13,965,936.87 and 5,536,776.70
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Solution
The fourth proportional to 10,120,417.66, 13,965,936.87 and 5,536,776.70 is: 7,640,620.82
Step by Step Solution
- Step 1: Write the proportion equation
10,120,417.66 : 13,965,936.87 = 5,536,776.70 : x - Step 2: Convert to fraction form
10,120,417.66/13,965,936.87 = 5,536,776.70/x - Step 3: Cross multiply
10,120,417.66x = 13,965,936.87 × 5,536,776.70 - Step 4: Simplify right side
10,120,417.66x = 77,326,273,855,486.92 - Step 5: Solve for x
x = 77,326,273,855,486.92/10,120,417.66 - Step 6: Final answer
x = 7,640,620.82
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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.