Finding the Fourth Proportional to 82,758,709.80, 124,138,064.70 and 73,671,068.70
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Solution
The fourth proportional to 82,758,709.80, 124,138,064.70 and 73,671,068.70 is: 110,506,603.05
Step by Step Solution
- Step 1: Write the proportion equation
82,758,709.80 : 124,138,064.70 = 73,671,068.70 : x - Step 2: Convert to fraction form
82,758,709.80/124,138,064.70 = 73,671,068.70/x - Step 3: Cross multiply
82,758,709.80x = 124,138,064.70 × 73,671,068.70 - Step 4: Simplify right side
82,758,709.80x = 9,145,383,892,798,746 - Step 5: Solve for x
x = 9,145,383,892,798,746/82,758,709.80 - Step 6: Final answer
x = 110,506,603.05
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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.