Finding the Fourth Proportional to 19,886,147.19, 27,455,490.93 and 13,617,163.94
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Solution
The fourth proportional to 19,886,147.19, 27,455,490.93 and 13,617,163.94 is: 18,800,319.51
Step by Step Solution
- Step 1: Write the proportion equation
19,886,147.19 : 27,455,490.93 = 13,617,163.94 : x - Step 2: Convert to fraction form
19,886,147.19/27,455,490.93 = 13,617,163.94/x - Step 3: Cross multiply
19,886,147.19x = 27,455,490.93 × 13,617,163.94 - Step 4: Simplify right side
19,886,147.19x = 373,865,920,909,715.62 - Step 5: Solve for x
x = 373,865,920,909,715.62/19,886,147.19 - Step 6: Final answer
x = 18,800,319.51
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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.