Finding the Fourth Proportional to 28,438,054.08, 39,244,798.45 and 15,385,593.18
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Solution
The fourth proportional to 28,438,054.08, 39,244,798.45 and 15,385,593.18 is: 21,232,272.14
Step by Step Solution
- Step 1: Write the proportion equation
28,438,054.08 : 39,244,798.45 = 15,385,593.18 : x - Step 2: Convert to fraction form
28,438,054.08/39,244,798.45 = 15,385,593.18/x - Step 3: Cross multiply
28,438,054.08x = 39,244,798.45 × 15,385,593.18 - Step 4: Simplify right side
28,438,054.08x = 603,804,503,382,794.62 - Step 5: Solve for x
x = 603,804,503,382,794.62/28,438,054.08 - Step 6: Final answer
x = 21,232,272.14
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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.