Finding the Fourth Proportional to 28,426,366.94, 39,228,412.49 and 15,373,625.82
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Solution
The fourth proportional to 28,426,366.94, 39,228,412.49 and 15,373,625.82 is: 21,215,617.75
Step by Step Solution
- Step 1: Write the proportion equation
28,426,366.94 : 39,228,412.49 = 15,373,625.82 : x - Step 2: Convert to fraction form
28,426,366.94/39,228,412.49 = 15,373,625.82/x - Step 3: Cross multiply
28,426,366.94x = 39,228,412.49 × 15,373,625.82 - Step 4: Simplify right side
28,426,366.94x = 603,082,934,967,551 - Step 5: Solve for x
x = 603,082,934,967,551/28,426,366.94 - Step 6: Final answer
x = 21,215,617.75
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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.