Finding the Fourth Proportional to 28,469,263.74, 39,290,394.15 and 16,247,949.18
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Solution
The fourth proportional to 28,469,263.74, 39,290,394.15 and 16,247,949.18 is: 22,423,773.70
Step by Step Solution
- Step 1: Write the proportion equation
28,469,263.74 : 39,290,394.15 = 16,247,949.18 : x - Step 2: Convert to fraction form
28,469,263.74/39,290,394.15 = 16,247,949.18/x - Step 3: Cross multiply
28,469,263.74x = 39,290,394.15 × 16,247,949.18 - Step 4: Simplify right side
28,469,263.74x = 638,388,327,411,369.25 - Step 5: Solve for x
x = 638,388,327,411,369.25/28,469,263.74 - Step 6: Final answer
x = 22,423,773.70
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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.