Finding the Fourth Proportional to 12,961,871.08, 17,887,893.72 and 7,455,237.14
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Solution
The fourth proportional to 12,961,871.08, 17,887,893.72 and 7,455,237.14 is: 10,288,521.53
Step by Step Solution
- Step 1: Write the proportion equation
12,961,871.08 : 17,887,893.72 = 7,455,237.14 : x - Step 2: Convert to fraction form
12,961,871.08/17,887,893.72 = 7,455,237.14/x - Step 3: Cross multiply
12,961,871.08x = 17,887,893.72 × 7,455,237.14 - Step 4: Simplify right side
12,961,871.08x = 133,358,489,617,716.75 - Step 5: Solve for x
x = 133,358,489,617,716.75/12,961,871.08 - Step 6: Final answer
x = 10,288,521.53
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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.