Finding the Fourth Proportional to 82,975,876.80, 124,463,815.20 and 44,712,124.80
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Solution
The fourth proportional to 82,975,876.80, 124,463,815.20 and 44,712,124.80 is: 67,068,187.20
Step by Step Solution
- Step 1: Write the proportion equation
82,975,876.80 : 124,463,815.20 = 44,712,124.80 : x - Step 2: Convert to fraction form
82,975,876.80/124,463,815.20 = 44,712,124.80/x - Step 3: Cross multiply
82,975,876.80x = 124,463,815.20 × 44,712,124.80 - Step 4: Simplify right side
82,975,876.80x = 5,565,041,638,306,537 - Step 5: Solve for x
x = 5,565,041,638,306,537/82,975,876.80 - Step 6: Final answer
x = 67,068,187.20
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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.