Finding the Fourth Proportional to 18,924,648.14, 28,386,563.70 and 5,277,431.18
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Solution
The fourth proportional to 18,924,648.14, 28,386,563.70 and 5,277,431.18 is: 7,916,032.85
Step by Step Solution
- Step 1: Write the proportion equation
18,924,648.14 : 28,386,563.70 = 5,277,431.18 : x - Step 2: Convert to fraction form
18,924,648.14/28,386,563.70 = 5,277,431.18/x - Step 3: Cross multiply
18,924,648.14x = 28,386,563.70 × 5,277,431.18 - Step 4: Simplify right side
18,924,648.14x = 149,808,136,363,436.16 - Step 5: Solve for x
x = 149,808,136,363,436.16/18,924,648.14 - Step 6: Final answer
x = 7,916,032.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.